Ecoboost Performance Forum

General Ecoboost Performance => Troubleshooting => Topic started by: Defhd10 on March 01, 2020, 05:34:07 PM

Title: F150 Boost pressure feels limited
Post by: Defhd10 on March 01, 2020, 05:34:07 PM
Hello everyone. Ive posted this on a few other forums and havent had much luck so figured id share this here as well for any advice.

I have a 2013 f150 with 63500 miles. I have a s&b drop in filter and a full race resonated exhaust.

A few weeks ago I got the recall notice for the transmission downshift to 1st gear. Ive never experienced the sudden downshift but decided to get the recall flash done. After getting the truck back something doesnt seem right. The truck feels very sluggish now. What sticks out most to me is the boost. I monitor parameters with an edge insight cts2. Prior to the flash i could easily build/hold up to 12 pounds of boost. Now after the flash the boost seems to be limited to 7 pounds under the same driving conditions. Only way i see the 12 pounds is if i run wide open throttle. But for normal driving and pulling grades, the boost will only climb to 7 pounds and will not increase, making the truck need to downshift where as it never needed to before.

I fully understand these vehicles are torque based and boost is never consistent,  but clearly something is not right in this case. Also i have well over 1000 miles after the flash so i dont believe it is just the truck "learning."

Things i have done so far to try and find a fix include: new plugs, new map sensors, new ebov, new wastegate solenoid, new wastegate actuators set to correct specs, a different throttle body, boost leak tested with no leaks, pressurized all vacuum lines and found no leaks. Also intercooler is dry with no condensation. All this with no improvement leaves me to believe something happened during the flash and the problem lies within the pcm limiting something.

If anyone has any advice on what to check or look for please let me know. I will add that i do have a custom tune for the truck, but boost was limited to 7 pounds on it as well, and datalogging revealed no issues.  Sorry for such a long post.  Thank you!
Title: Re: F150 Boost pressure feels limited
Post by: ZSHO on March 01, 2020, 06:02:06 PM
I would check your waste-gate hoses for premature wear and tear and verify they are indeed intact..
Have you tried performing a PCM Memory reset by removing ground and negative on battery terminal to re-learn values! What Boost pressure (psi) are you seeing in stock tune! BTW Welcome aboard. Z

https://www.youtube.com/watch?v=hZAsoqmqhdM (https://www.youtube.com/watch?v=hZAsoqmqhdM)
Title: Re: F150 Boost pressure feels limited
Post by: Defhd10 on March 01, 2020, 06:23:59 PM
I would check your waste-gate hoses for premature wear and tear and verify they are intact..
Have you tried performing a PCM'S Memory reset by removing ground and negative on battery terminal to re-learn values! What Boost pressure (psi) are you seeing in stock tune! BTW Welcome aboard! Z

https://www.youtube.com/watch?v=hZAsoqmqhdM (https://www.youtube.com/watch?v=hZAsoqmqhdM)
Thanks for the welcome!  Wastegate hoses are good. I unhooked the t fitting that attaches to the wastegate solenoid and put in 10lbs of pressure to each wastegate. The hoses and actuators held the pressure with no leaks. A pcm reset was done along with a throttle reset and neither made any difference. Stock pressure will max at 12psi, which i will see at WOT. When not wot i only am seeing 7psi. I used to be able to pull a hill 6th gear torque converter locked and build up to 10 or 11lbs before needing to downshift. Now it will only build and hold 7lbs and constantly needs to downshift to maintain speed. Even after a downshift it wont increase pressure.
Title: Re: F150 Boost pressure feels limited
Post by: SHOdded on March 01, 2020, 07:19:08 PM
check the actuator at the turbos to see if the c clip is perhaps loose.  that has happened on the SHO turbos.  it's hard to look inside the turbo to see if the linkage is on the verge of breaking without actually removing the turbo from the vehicle, but that is a possibility as well.  not familiar with the f150, but plenty of 2.0s have had that linkage break and the pressure continually vented.
(https://www.ecoboostperformanceforum.com/index.php?action=dlattach;topic=10371.0;attach=22411;image)
Title: Re: F150 Boost pressure feels limited
Post by: Defhd10 on March 01, 2020, 08:11:09 PM
check the actuator at the turbos to see if the c clip is perhaps loose.  that has happened on the SHO turbos.  it's hard to look inside the turbo to see if the linkage is on the verge of breaking without actually removing the turbo from the vehicle, but that is a possibility as well.  not familiar with the f150, but plenty of 2.0s have had that linkage break and the pressure continually vented.
(https://www.ecoboostperformanceforum.com/index.php?action=dlattach;topic=10371.0;attach=22411;image)
C clip is intact and the 2 nuts are tight on both turbos. It could be possible that the linkage itself could be going bad. Just seems very odd that this issue appeared right after a reflash. Could it be possible for the issue to be in the software and not the hardware?
Title: Re: F150 Boost pressure feels limited
Post by: SHOdded on March 01, 2020, 08:23:36 PM
absolutely.  this is not uncommon, especially if the file is flawed.  sometimes the fix is to change tuners (no joke).  have you sent your log file in for review by the tuner?  they should be able to adjust what they need to on their end, or suggest what you need to inspect on yours.

if the vehicle is running on a stock/oem file, any updates by the dealer have potential to change the strategy code, which in turn means you have to have your tune updated if you are running a tune.

If you have not already, pull the neg battery cable for 40+ minutes to reset the KAM (or use the jumper method shown by FordTechMakuloco on his YT channel).  Let the vehicle relearn, see if that changes anything.  You may even need to reset the TCM (not part of the KAM reset) via either Forscan or a high level scan tool.  If the settings in the TCM are not updating to the current PCM KAM adaptations, that could be the issue right there.
Title: Re: F150 Boost pressure feels limited
Post by: Defhd10 on March 01, 2020, 09:03:18 PM
absolutely.  this is not uncommon, especially if the file is flawed.  sometimes the fix is to change tuners (no joke).  have you sent your log file in for review by the tuner?  they should be able to adjust what they need to on their end, or suggest what you need to inspect on yours.

if the vehicle is running on a stock/oem file, any updates by the dealer have potential to change the strategy code, which in turn means you have to have your tune updated if you are running a tune.

If you have not already, pull the neg battery cable for 40+ minutes to reset the KAM (or use the jumper method shown by FordTechMakuloco on his YT channel).  Let the vehicle relearn, see if that changes anything.  You may even need to reset the TCM (not part of the KAM reset) via either Forscan or a high level scan tool.  If the settings in the TCM are not updating to the current PCM KAM adaptations, that could be the issue right there.
Thank you for the tip i may have to look into the tcm. One thing i guess i didnt mention is i am currently on the stock tune. I did have the custom tune written for the new strategy, and did a datalog and sent to the tuner. They said there didnt appear to be anything wrong. The truck runs the same way on both the stock and custom tune. Of course the custom tune feels much better but is still being limited  to 7lbs for some reason.  So could it be a glitch in the factory tune causing the issue both stock and tuned?
Title: Re: F150 Boost pressure feels limited
Post by: SHOdded on March 02, 2020, 02:12:56 AM
Shouldn't be.  Possible the tuner does not have experience with this new strategy.  But I would try clearing the PCM's KAM and TCM's adaptive tables by brute force first.
Title: Re: F150 Boost pressure feels limited
Post by: Defhd10 on March 02, 2020, 08:52:24 AM
Shouldn't be.  Possible the tuner does not have experience with this new strategy.  But I would try clearing the PCM's KAM and TCM's adaptive tables by brute force first.
Thank you  i will try that.
Title: Re: F150 Boost pressure feels limited
Post by: Defhd10 on March 02, 2020, 12:53:01 PM
So this morning i perform a KAM reset. I did not see a TCM reset option in forscan so i was unable to do that. Even with the KAM reset it made no difference. 7lbs is all i can get unless wot.
Title: Re: F150 Boost pressure feels limited
Post by: SHOdded on March 02, 2020, 03:28:07 PM
The tuning device may allow you to reset the TCM.  If in doubt, ask the tuner.
Title: Re: F150 Boost pressure feels limited
Post by: Defhd10 on March 02, 2020, 04:19:50 PM
I know its highly unlikely the issue lies within the stock tune, but i think i am going to have the dealer flash it again just so i can rule the possibility out. I know anything can happen at any moment, but it seems very odd to me that i had not one single issue prior to the recall, but am now having issues directly after the recall. Coincidence maybe i dont know. Like i said ive pretty much touched everything boost related other then physically removing the turbos and checking them. But if its the pcm telling eveything what to do, could it be a glitch in the pcm itself.  Following along other threads on different forums, it seems pretty mixed on the outcome of the recall. Alot have no issues but others are having problems afterwards as well. None seem to have the same problem i am though, not that i have found anyway. 
Title: Re: F150 Boost pressure feels limited
Post by: Defhd10 on March 05, 2020, 11:00:04 AM
Well i had the dealer flash it again this morning and of course no change.  Anyone have any other suggestions on what to check or look for?  I am completely out of ideas.
Title: Re: F150 Boost pressure feels limited
Post by: SM105K on March 05, 2020, 11:44:32 AM
On your original post you said that the custom tune was also limited to 7 psi and that the datalogs revealed no issues.  Who reviewed the datalogs?  Did your tuner say there was not issues with the logs? 

I would like to know what your waste gate duty cycle is doing, along with your commanded/desired boost vs actual boost is doing at the very least.       
Title: Re: F150 Boost pressure feels limited
Post by: Defhd10 on March 05, 2020, 12:03:27 PM
On your original post you said that the custom tune was also limited to 7 psi and that the datalogs revealed no issues.  Who reviewed the datalogs?  Did your tuner say there was not issues with the logs? 

I would like to know what your waste gate duty cycle is doing, along with your commanded/desired boost vs actual boost is doing at the very least.     
I am tuned through unleashed tuning. I sent Torrie 3 logs of when the boost was being limited,  and he sent a revision. I tried the revision and still no change. I flashed back to stock and noticed it was still doing the same.  I mentioned to him it did the same stock and he said it is not the tune then which i agree with. I really hate to keep bothing him about it because i know hes limited on what he can do on his end. Im able to log but i dont understand it like others are able to. If someone can send me a config, id be more then happy to log and have someone read it.
Title: Re: F150 Boost pressure feels limited
Post by: SM105K on March 05, 2020, 12:52:50 PM
On your original post you said that the custom tune was also limited to 7 psi and that the datalogs revealed no issues.  Who reviewed the datalogs?  Did your tuner say there was not issues with the logs? 

I would like to know what your waste gate duty cycle is doing, along with your commanded/desired boost vs actual boost is doing at the very least.     
I am tuned through unleashed tuning. I sent Torrie 3 logs of when the boost was being limited,  and he sent a revision. I tried the revision and still no change. I flashed back to stock and noticed it was still doing the same.  I mentioned to him it did the same stock and he said it is not the tune then which i agree with. I really hate to keep bothing him about it because i know hes limited on what he can do on his end. Im able to log but i dont understand it like others are able to. If someone can send me a config, id be more then happy to log and have someone read it.

You can send me a couple of datalogs.  Just send me what you sent Torrie.  I have a bunch of different configs that I can look at.

Strongmantaylor@gmail.com
Title: Re: F150 Boost pressure feels limited
Post by: Defhd10 on March 05, 2020, 01:16:38 PM
On your original post you said that the custom tune was also limited to 7 psi and that the datalogs revealed no issues.  Who reviewed the datalogs?  Did your tuner say there was not issues with the logs? 

I would like to know what your waste gate duty cycle is doing, along with your commanded/desired boost vs actual boost is doing at the very least.     
I am tuned through unleashed tuning. I sent Torrie 3 logs of when the boost was being limited,  and he sent a revision. I tried the revision and still no change. I flashed back to stock and noticed it was still doing the same.  I mentioned to him it did the same stock and he said it is not the tune then which i agree with. I really hate to keep bothing him about it because i know hes limited on what he can do on his end. Im able to log but i dont understand it like others are able to. If someone can send me a config, id be more then happy to log and have someone read it.

You can send me a couple of datalogs.  Just send me what you sent Torrie.  I have a bunch of different configs that I can look at.

Strongmantaylor@gmail.com
Thanks. Just please know im not trying to point the finger at anyones tune or blame anyone. The truck does do this stock as well so i dont believe its a tuning issue. Just dont want anyone to get the wrong idea.
Title: Re: F150 Boost pressure feels limited
Post by: SM105K on March 05, 2020, 01:48:52 PM
On your original post you said that the custom tune was also limited to 7 psi and that the datalogs revealed no issues.  Who reviewed the datalogs?  Did your tuner say there was not issues with the logs? 

I would like to know what your waste gate duty cycle is doing, along with your commanded/desired boost vs actual boost is doing at the very least.     
I am tuned through unleashed tuning. I sent Torrie 3 logs of when the boost was being limited,  and he sent a revision. I tried the revision and still no change. I flashed back to stock and noticed it was still doing the same.  I mentioned to him it did the same stock and he said it is not the tune then which i agree with. I really hate to keep bothing him about it because i know hes limited on what he can do on his end. Im able to log but i dont understand it like others are able to. If someone can send me a config, id be more then happy to log and have someone read it.

You can send me a couple of datalogs.  Just send me what you sent Torrie.  I have a bunch of different configs that I can look at.

Strongmantaylor@gmail.com
Thanks. Just please know im not trying to point the finger at anyones tune or blame anyone. The truck does do this stock as well so i dont believe its a tuning issue. Just dont want anyone to get the wrong idea.

I understand.  I just want to see what is being commanded vs actual.  That will give me an idea what is going to on.  If it is commanding 14 psi and only making 7 to 10 psi, then we know something is off in theory.  Could be a boost leak, software issue, ect...
Title: Re: F150 Boost pressure feels limited
Post by: SHOdded on March 05, 2020, 02:13:23 PM
Wouldn't be surprised if Ford is buying time to find the real solution.
Title: Re: F150 Boost pressure feels limited
Post by: Defhd10 on March 05, 2020, 02:36:27 PM
Wouldn't be surprised if Ford is buying time to find the real solution.
Well my dad has the exact same truck as me down to every option except color and he has had the recall done as well. His runs perfect. He can pull the same hills i do and his will hold 6th where mine drops to 5th. His is stock tuned an never has seen a tune, but his truck stock is running better then mine.  I cant figure it out. I dont know if its a mechanical problem, software problem, etc.  Something is holding back power.
Title: Re: F150 Boost pressure feels limited
Post by: SHOdded on March 05, 2020, 03:13:00 PM
Very strange!
Title: Re: F150 Boost pressure feels limited
Post by: derfdog15 on March 06, 2020, 08:50:36 AM
Do you have any codes or otherwise? When I toasted something in the SHO (never found out what) I was getting an underboost condition code, as it would only make 4PSI. I chased a lot other than physically checking turbos and never found anything.

Are you able to put the truck in M to make it hold gear? Would be interesting to see boost with it rev'd out and holding.

You mentioned exhaust, was that done before or after the issue presented? Could be an exhaust pressure issue if it was done afterwards.

Additionally, what tuner do you have (actual device)? The SCT X4 has a CAM reset option, and the TCM can be reset bu doing a fill battery disconnect for ~40 minutes to an hour and then reconnecting. There is a sequence to learn it properly regarding how long to idle, how long to run AC, etc. but I don't know the specifics of it. I would do a KAM reset (you can do that from the SCT X4 device too) and then battery for a full reset.

Additionally, I would check with ford if they moved shift points, or adjusted anything else regarding shifts.

Title: Re: F150 Boost pressure feels limited
Post by: Defhd10 on March 06, 2020, 09:10:03 AM
Do you have any codes or otherwise? When I toasted something in the SHO (never found out what) I was getting an underboost condition code, as it would only make 4PSI. I chased a lot other than physically checking turbos and never found anything.

Are you able to put the truck in M to make it hold gear? Would be interesting to see boost with it rev'd out and holding.

You mentioned exhaust, was that done before or after the issue presented? Could be an exhaust pressure issue if it was done afterwards.

Additionally, what tuner do you have (actual device)? The SCT X4 has a CAM reset option, and the TCM can be reset bu doing a fill battery disconnect for ~40 minutes to an hour and then reconnecting. There is a sequence to learn it properly regarding how long to idle, how long to run AC, etc. but I don't know the specifics of it. I would do a KAM reset (you can do that from the SCT X4 device too) and then battery for a full reset.

Additionally, I would check with ford if they moved shift points, or adjusted anything else regarding shifts.
No codes at all through all of this. I really wish it would throw a code so i could maybe get another idea. I have tried the manual mode. Again only allowing 7lbs max and will drop as climbing the hill. Exhaust has been on the truck now for over 5 years without any issues so i dont believe thats the problem. I have an sct x4. I have done multiple kam resets with no change after doing so. I will have to disconnect the battery today for an hour and see what happens. The ford dealer claims that shifts couldve been changed, but theyre not fully sure.  Again like i said my dad has had the same recall, and his runs perfect. I even checked his strategy with the x4 and his strategy is the same as mine.
Title: Re: F150 Boost pressure feels limited
Post by: derfdog15 on March 06, 2020, 02:14:55 PM
My next thought is the boost control solenoid. Its a $30 part that routes to each turbo, for the reference IIRC. There is a chance it is failing, but could also just be a part that gets thrown at the truck with no benefit. Up to you if its worth it to take a $30 gamble. If you're dad is OK with it, you may be able to swap the part and see if the issue switches trucks.
Title: Re: F150 Boost pressure feels limited
Post by: Defhd10 on March 06, 2020, 02:35:01 PM
My next thought is the boost control solenoid. Its a $30 part that routes to each turbo, for the reference IIRC. There is a chance it is failing, but could also just be a part that gets thrown at the truck with no benefit. Up to you if its worth it to take a $30 gamble. If you're dad is OK with it, you may be able to swap the part and see if the issue switches trucks.
Yup ive tried his solenoid along with a brand new one. No change. I tried all his map sensors in mine. No change. Tried his bov along with a brand new one. No change. Even tried all his coil packs out of curiosity.  No change. I put 10lbs of pressure into the vaccum lines going to each wastegate to see if i had a leak. No leaks as it held the pressure no problem. Either this problem is so deep i cant find it or im overlooking the obvious.   
Title: Re: F150 Boost pressure feels limited
Post by: derfdog15 on March 06, 2020, 02:46:11 PM
I guess the next question would be regarding the logs is the truck making the power its asking for? If the truck is meeting the demands of what it is asking for, then the issue would lay somewhere with the change in calibration.
Title: Re: F150 Boost pressure feels limited
Post by: ZSHO on March 06, 2020, 04:05:12 PM
I noticed on your initial post you mentioned new actuator's! Stock or aftermarket! If so do you have an updated revised Tune to accommodate the new Actuators! TOL. Z
Title: Re: F150 Boost pressure feels limited
Post by: Defhd10 on March 06, 2020, 05:04:08 PM
I guess the next question would be regarding the logs is the truck making the power its asking for? If the truck is meeting the demands of what it is asking for, then the issue would lay somewhere with the change in calibration.
This im unsure of. Still waiting on another member looking into this to let me know. It does it both stock and tuned though.
Title: Re: F150 Boost pressure feels limited
Post by: Defhd10 on March 06, 2020, 05:06:46 PM
I noticed on your initial post you mentioned new actuator's! Stock or aftermarket! If so do you have an updated revised Tune to accommodate the new Actuators! TOL. Z
Stock replacement actuators from full race. They were set to the same specs as the originals the came off the truck. I can put pressure to them and they start to open and are fully extended with what specs are called for on the f150.
Title: Re: F150 Boost pressure feels limited
Post by: Defhd10 on March 10, 2020, 08:34:31 AM
So ive had some logs read by a couple different people. All saying the truck is making the power it should and everything looks normal. I dont get it. When accelerating from a stop, the boost is "choppy", i can feel the truck surge until once up to speed.  Sometimes when shifting gears i see a huge spike in boost, sometimes 10lbs then settling back down. And once up to speed the boost will not climb any higher then 7lbs. This is the same on both the stock file and tune file.  Im at a complete loss. I have no idea what could be causing this. Everything ive done or tried has made no difference what so ever. I was told it could possibly be bad fuel, but ive ran about 3 full tanks of fuel through this thing since the problems started with no change. If anyone else has any suggestions im open to anything.
Title: Re: F150 Boost pressure feels limited
Post by: SHOdded on March 10, 2020, 08:56:51 AM
I remember a while back that compressor surge was mentioned on an F150 ... IF IRC lol.  Still could be a boost leak or a defective spring leading to control issues.  Have not heard of hoses popping off the F150, more on the SHOs, but that could always be.

Long read, but may be some treasures in here
https://www.ecoboostperformanceforum.com/index.php/topic,4958.0.html (https://www.ecoboostperformanceforum.com/index.php/topic,4958.0.html)
Title: Re: F150 Boost pressure feels limited
Post by: ZSHO on March 10, 2020, 09:21:25 AM
FWIW- I noticed there are 3 Spring rates available for the wastegate actuators! I'm assuming you went with the Oem replacement.
BTW do you have any PICS of the engine bay to share!  Z

Wastegate Spring - Low Boost (100% OEM replacement)

Wastegate Spring - Mid Boost (custom tuning recommended)

Wastegate Spring - High Boost (extreme applications)

https://www.full-race.com/store/ecoboost/f150-2015-2019/f150-big-turbo-2015-2019/2011-2016-f150-ecoboost-3-5l-wastegate-actuator/ (https://www.full-race.com/store/ecoboost/f150-2015-2019/f150-big-turbo-2015-2019/2011-2016-f150-ecoboost-3-5l-wastegate-actuator/)
Title: Re: F150 Boost pressure feels limited
Post by: Defhd10 on March 10, 2020, 09:36:38 AM
FWIW- I noticed there are 3 Spring rates available for the wastegate actuators! I'm assuming you went with the Oem replacement.
BTW do you have any PICS of the engine bay to share!  Z

Wastegate Spring - Low Boost (100% OEM replacement)

Wastegate Spring - Mid Boost (custom tuning recommended)

Wastegate Spring - High Boost (extreme applications)

https://www.full-race.com/store/ecoboost/f150-2015-2019/f150-big-turbo-2015-2019/2011-2016-f150-ecoboost-3-5l-wastegate-actuator/ (https://www.full-race.com/store/ecoboost/f150-2015-2019/f150-big-turbo-2015-2019/2011-2016-f150-ecoboost-3-5l-wastegate-actuator/)
Correct oem low boost actuators. I even put the old ones back on thinking maybe i got sent the wrong ones. Still no change.
Title: Re: F150 Boost pressure feels limited
Post by: Defhd10 on March 10, 2020, 09:38:26 AM
Pic of engine
Title: Re: F150 Boost pressure feels limited
Post by: derfdog15 on March 10, 2020, 10:40:33 AM
Have you tried to swap the MAP sensors? Sorry if this was already stated? Could be that you are measuring a certain level of boost, which is not the actual level of boost being made. Just something that comes to mind.

Additionally, if it is surging, then that is indicative of an issue with wastegate, or the boost control solenoid, if not turbos or an actual over pressurization within the intake, or some larger underlying problem.
Title: Re: F150 Boost pressure feels limited
Post by: Defhd10 on March 10, 2020, 11:04:16 AM
Have you tried to swap the MAP sensors? Sorry if this was already stated? Could be that you are measuring a certain level of boost, which is not the actual level of boost being made. Just something that comes to mind.

Additionally, if it is surging, then that is indicative of an issue with wastegate, or the boost control solenoid, if not turbos or an actual over pressurization within the intake, or some larger underlying problem.
Tried cleaning the sensors, then replaced the sensors.  No change. replaced the watstegate solenoid with not change. Tried 2 sets of oem actuators set to oem specs with no change. I dont feel its turbos because it runs just fine at wot. I thought for sure i would throw a code yesterday while towing because it was an absolute dog but it did not. I did another boost leak test to see if i had missed anything the first time and again didnt find anything. I just dont understand.
Title: Re: F150 Boost pressure feels limited
Post by: ZSHO on March 10, 2020, 02:43:58 PM
Pic of engine
The map sensor was left loose intentionally correct?  Z
Title: Re: F150 Boost pressure feels limited
Post by: Defhd10 on March 10, 2020, 05:09:27 PM
Pic of engine
The map sensor was left loose intentionally correct?  Z
If your talking about the one on top of the intake manifold yes. All f150s only come with one bolt holding it down.
Title: Re: F150 Boost pressure feels limited
Post by: SM105K on March 11, 2020, 09:06:08 AM
Pic of engine
The map sensor was left loose intentionally correct?  Z
If your talking about the one on top of the intake manifold yes. All f150s only come with one bolt holding it down.

Z is eluding that the MAP sensor in your picture looks like it is not secure.  Our MAP sensors on the SHO only have one bolt as well. 
Title: Re: F150 Boost pressure feels limited
Post by: SHOdded on March 11, 2020, 09:36:35 AM
Perhaps the source of the confusion ...
Title: Re: F150 Boost pressure feels limited
Post by: ZSHO on March 11, 2020, 10:15:53 AM
Exactamundo........
Title: Re: F150 Boost pressure feels limited
Post by: Defhd10 on March 11, 2020, 01:37:51 PM
I see what you guys are saying. But there are 2 holes on that side of the map. The bolt is in the rear hole and the sensor is secure.
Title: Re: F150 Boost pressure feels limited
Post by: Defhd10 on March 11, 2020, 02:07:26 PM
Does anyone think this could be a pcm glitch?  From what ive found, the truck wouldnt have started if the flash would have been missing something.  But remember this is happening both stock and tuned. Boost will climb and basically cap its self right at 7 lbs. But if i do a wide open throttle run, it will build full boost, 12-14 lbs or whatever it is. Could there be something missing from the recall flash thats not telling the computer what to do?  Or could i have a turbo on its way out?  I wouldnt think i would be able to make full boost at wot if a turbo was going bad. I dont have any smoke from exhaust, no high pitched sound of the compressor hitting the housing or a check engine light for low boost. So this makes me feel like the computer is only telling it to allow 7lbs. But a tune should change this and allow for much more, but it does not.
Title: Re: F150 Boost pressure feels limited
Post by: TopherSho on March 11, 2020, 02:52:43 PM
Does anyone think this could be a pcm glitch?  From what ive found, the truck wouldnt have started if the flash would have been missing something.  But remember this is happening both stock and tuned. Boost will climb and basically cap its self right at 7 lbs. But if i do a wide open throttle run, it will build full boost, 12-14 lbs or whatever it is. Could there be something missing from the recall flash thats not telling the computer what to do?  Or could i have a turbo on its way out?  I wouldnt think i would be able to make full boost at wot if a turbo was going bad. I dont have any smoke from exhaust, no high pitched sound of the compressor hitting the housing or a check engine light for low boost. So this makes me feel like the computer is only telling it to allow 7lbs. But a tune should change this and allow for much more, but it does not.


Hmm sounds like to need to find/drive a same year truck with the old firmware and check it out in the handheld.
Title: Re: F150 Boost pressure feels limited
Post by: SHOdded on March 11, 2020, 03:56:11 PM
I definitely think it is software (or maybe PCM) related, since your Dad has basically the same truck with no issues.  You COULD swap PCMs like derf suggested earlier, but IDK how nicely it would play with PATS and other modules on your F150.
Title: Re: F150 Boost pressure feels limited
Post by: Defhd10 on March 11, 2020, 05:09:40 PM
I definitely think it is software (or maybe PCM) related, since your Dad has basically the same truck with no issues.  You COULD swap PCMs like derf suggested earlier, but IDK how nicely it would play with PATS and other modules on your F150.
Yes my dads is the same truck to a T. Same strategy per what my x4 says when i read his vehicle info with it, and his runs flawlessl.  He has 90k on his truck and i only have 64k so thats why this is so upsetting to me. I really dont wanna go pulling his pcm to try in mine. Really think that could cause even more headache. My cousin has a 13 as well, but has not had the recall done, and his is still running perfect also. He has 87k if i remember. I took the truck back to the dealer that flashed it the first time and asked them to flash it again. They CLAIM it went through the flash again but i know it did not. Especially when i asked what i owed and they told me it was written up as "internal" and there was no charge. Plus when i got back in the truck nothing was changed like the date, time or radio sound settings as all these are reset after a flash.
Title: Re: F150 Boost pressure feels limited
Post by: SHOdded on March 11, 2020, 06:01:29 PM
Dunno what markers change with the flash as to what is visible to the public and tuners vs Ford.  Torrie can speak to that maybe.  AJP or Matt likely can provide insight on this as well.
Title: Re: F150 Boost pressure feels limited
Post by: Defhd10 on March 11, 2020, 07:01:30 PM
Ive thought of trying another dealer to see if they would considering flashing again. Seems like thats my only option other then continuing to run it the way it is, which is not enjoyable at all. I know its not right, and that there is a problem, but i dont know what or where it is.
Title: Re: F150 Boost pressure feels limited
Post by: SHOdded on March 11, 2020, 07:22:17 PM
Unless the service manager is cooperative, another dealer is the best option, agreed.

I suppose they could roll it back to asbuilt then flash it with the update.
Title: Re: F150 Boost pressure feels limited
Post by: TopherSho on March 12, 2020, 10:06:46 AM
I remember a while back that compressor surge was mentioned on an F150 ... IF IRC lol.  Still could be a boost leak or a defective spring leading to control issues.  Have not heard of hoses popping off the F150, more on the SHOs, but that could always be.

Long read, but may be some treasures in here
https://www.ecoboostperformanceforum.com/index.php/topic,4958.0.html (https://www.ecoboostperformanceforum.com/index.php/topic,4958.0.html)

Would this have to do with them trying to solve overheating when towing?  I seem to recall part of the overheating fix for steady towing was to limit boost to keep exhaust and return oil temps down...
Title: Re: F150 Boost pressure feels limited
Post by: Defhd10 on March 12, 2020, 10:33:51 AM
I remember a while back that compressor surge was mentioned on an F150 ... IF IRC lol.  Still could be a boost leak or a defective spring leading to control issues.  Have not heard of hoses popping off the F150, more on the SHOs, but that could always be.

Long read, but may be some treasures in here
https://www.ecoboostperformanceforum.com/index.php/topic,4958.0.html (https://www.ecoboostperformanceforum.com/index.php/topic,4958.0.html)

Would this have to do with them trying to solve overheating when towing?  I seem to recall part of the overheating fix for steady towing was to limit boost to keep exhaust and return oil temps down...
Wouldnt a tune raise the boost then though?  Im being limited to the same amount both stock and tuned.
Title: Re: F150 Boost pressure feels limited
Post by: TopherSho on March 12, 2020, 10:40:38 AM
I'd ask Brad/AJP and or the tuner,  but bumping the max limits does bot control or affect most non-wot behavior IIRC.  Under non WoT you are on a oem tune for the most part unless the vendor goes balls deep to retune boost behavior when your under 70% throttle (might be 80%?)

Either way I know from Brad/Torrie tunes that My car (so not a full apple to apple) when i am not WoT there are more oem limits in use on the way it operates the WasteG, Bov's .. when i am WoT then i get the 14.5 / spark boosts to make the stumps cry
Title: Re: F150 Boost pressure feels limited
Post by: Defhd10 on March 12, 2020, 10:57:31 AM
I'd ask Brad/AJP and or the tuner,  but bumping the max limit does bot control or affect most non-wot behavior IIRC.  Under non WoT you are on a oem tune for the most part unless the vendor goes balls deep to retune boost behavior when your under 70% throttle (might be 80%?)

Either way I know from Brad/Torrie tunes that My car (do not a full apple to apple) when i am not WoT there are more oem limits in use on the way it operates the WasteG, Bov's .. when i am WoT then i get the 14.5 / spark boosts to make the stumps cry
I know something up. From pulling out from a stop lately,  the boost is very choppy. And between a shift, the boost will surge the whole way to 10psi at times. This is all on the stock tune as well.
Title: Re: F150 Boost pressure feels limited
Post by: SHOdded on March 12, 2020, 11:35:16 AM
I keep coming back to a stuck wastegate or a broken spring for hardware reasons.  But you have already eliminated those possibilities.  Hoses attached to the boost solenoid would be next.  But if they did not touch anything under the hood, a bad flash might still be the frontrunner in this race.
Title: Re: F150 Boost pressure feels limited
Post by: TopherSho on March 12, 2020, 11:39:16 AM
I keep coming back to a stuck wastegate or a broken spring for hardware reasons.  But you have already eliminated those possibilities.  Hoses attached to the boost solenoid would be next.  But if they did not touch anything under the hood, a bad flash might still be the frontrunner in this race.

 Is it possibly the Squid ?  (Boost control solenoid?)
Title: Re: F150 Boost pressure feels limited
Post by: SHOdded on March 12, 2020, 11:45:31 AM
Could be
Title: Re: F150 Boost pressure feels limited
Post by: Defhd10 on March 12, 2020, 11:59:29 AM
I keep coming back to a stuck wastegate or a broken spring for hardware reasons.  But you have already eliminated those possibilities.  Hoses attached to the boost solenoid would be next.  But if they did not touch anything under the hood, a bad flash might still be the frontrunner in this race.

 Is it possibly the Squid ?  (Boost control solenoid?)
Tried a total of 3 different boost solenoids. None of which made any change. Hoses attached to it are all good with no leaks. 2 different sets of oem actuators were tried with no change. Im leaning towards a software issue, or maybe the possibility of the wastegate internally or a turbo itself going bad.
Title: Re: F150 Boost pressure feels limited
Post by: TopherSho on March 12, 2020, 12:17:40 PM
@all others,  how hard on a truck would it be to pop the front off the turbo to check for spindle play ?
Title: Re: F150 Boost pressure feels limited
Post by: Defhd10 on March 12, 2020, 12:24:14 PM
@all others,  how hard on a truck would it be to pop the front off the turbo to check for spindle play ?
From what i see, all intake/intercooler piping has to come out in order to gain access. there is very little room with how the tubos are placed behind the shock mount assembly to just get in behind them to pull tubing off.  Might be what it comes to on a nice weekend.
Title: Re: F150 Boost pressure feels limited
Post by: TopherSho on March 12, 2020, 12:54:21 PM
Bummer :(
Title: Re: F150 Boost pressure feels limited
Post by: Defhd10 on March 15, 2020, 12:14:19 AM
What all controls boost?  I know you have the wastegates, wastegate actuators, wastegate solenoid, map sensors, blow off valve, obviously the pcm, what else?  I know fuel, temperature, and alot of other variables take affect, but being limited to the same amount of boost all the time in different conditions just seems so odd. Is there something so simple im overlooking?  Im more then likely going to pull my downpipe and look at the wastegate itself. I dont know what else to check.
Title: Re: F150 Boost pressure feels limited
Post by: Defhd10 on March 15, 2020, 04:41:45 PM
So i pulled all my piping today to take a look at my turbos. I only checked the compressor side and not the turbine side. Everything looks good. No movement in the shaft and they both spin freely. The last two possibilities i can think of are eather the wastegate flap in one of the turbos is not seating and letting gasses by, or it is electrical. Whether its a sensor or the pcm itself something isnt allowing for the increase in pressure.
Title: Re: F150 Boost pressure feels limited
Post by: Defhd10 on March 21, 2020, 02:52:12 PM
Things seem to be getting worse. Boost will surge with almost every shift, and from 1st to about 4th gear the boost is very choppy. Had an evening last week where i began to accelerate at the bottom of a hill and it felt like naturally aspirated engine. Boost was only at 2 lbs with probably 50% throttle input. I had to keep putting the pedal closer to the floor till it finally spooled to 7 lbs. Still no lights or codes.
Title: Re: F150 Boost pressure feels limited
Post by: SHOdded on March 22, 2020, 04:34:43 AM
Have you had it reflashed yet to revert to the old pre-fix OEM tune?

If you have a backup of the OEM tune from when you initially tuned the vehicle, you could try loading that in.  Confirm with your tuner first.  May even be able to get an OEM tune from your tuner if you have that strategy code.
Title: Re: F150 Boost pressure feels limited
Post by: Defhd10 on March 22, 2020, 09:33:28 AM
Have you had it reflashed yet to revert to the old pre-fix OEM tune?

If you have a backup of the OEM tune from when you initially tuned the vehicle, you could try loading that in.  Confirm with your tuner first.  May even be able to get an OEM tune from your tuner if you have that strategy code.
No i dont have a backup of the old strategy stock tune. I went to dealer number 2 and asked them if they could flash an as built file then put the updated one back in and they told me it wasnt possible. Once updated it cant be reversed. I said thats fine but can you force the same new file through and again they said no, once the latest file is in it wont accept it again.
Title: Re: F150 Boost pressure feels limited
Post by: SHOdded on March 22, 2020, 09:44:46 PM
Lip service, not surprising.  U can use Forscan for windows w extended license to flash the as built yourself, but and that should work.

Or ask your tuner to build you an oem file from when u originally bought the tune.
Title: Re: F150 Boost pressure feels limited
Post by: Defhd10 on March 23, 2020, 05:10:00 PM
Okay i have a new question regarding this problem. About a week before this began, i had the condensation issue. My wagner intercooler was loaded with water and i got a misfire on cylinder 6. I unded up putting my stock intercooler back on for the time being. My question is could the condensation and misfire possibly caused this? Im trying to remember how the truck ran after taking care of the condensation. Im pretty sure it was still doing the surging between shifts back then as well. Also ive noticed my turbos dont sound right at all. My cousin even said they sould way louder which i agree with. But visually inspecting the compressor side of them they seem fine. Is it possible all that condensation over time could have created this problem? I have checked the stock intercooler for water since then and it is dry. Plugs were changed as well. Would a misfire cause enough damage to something to create this problem?
Title: Re: F150 Boost pressure feels limited
Post by: SHOdded on March 23, 2020, 06:35:08 PM
If it was LSPI, not misfire, it could definitely do some serious harm.  But all that water leads me immediately to some type of hydrolocking thought.  Maybe I am totally offbase on this.  IF the water caused decarboning, it could have damaged the turbo(s), cat(s), etc.

I would start with borescoping the cylinders if you think that is a concern.  I would think tho that SOME type of code would be thrown SOMEwhere in the system.  Usually when the PCM is at fault, that is when no codes show up.  Happened to gen 1 & 2 SHOs all the time.  Why I think you may be on the right track with tune issues.

Never thought about drilling the intercooler?  Seems to be a popular option with the F150 folks.  Or applying the TSB to it ...
Title: Re: F150 Boost pressure feels limited
Post by: TopherSho on March 23, 2020, 07:40:49 PM
Scanning back I do not see any datalogs .. im curious what the DSD boost is and actaul boost is combined with the wastegate %% and actual-throttle + Throttle position ...

Title: Re: F150 Boost pressure feels limited
Post by: Defhd10 on March 23, 2020, 08:13:15 PM
If it was LSPI, not misfire, it could definitely do some serious harm.  But all that water leads me immediately to some type of hydrolocking thought.  Maybe I am totally offbase on this.  IF the water caused decarboning, it could have damaged the turbo(s), cat(s), etc.

I would start with borescoping the cylinders if you think that is a concern.  I would think tho that SOME type of code would be thrown SOMEwhere in the system.  Usually when the PCM is at fault, that is when no codes show up.  Happened to gen 1 & 2 SHOs all the time.  Why I think you may be on the right track with tune issues.

Never thought about drilling the intercooler?  Seems to be a popular option with the F150 folks.  Or applying the TSB to it ...
No codes at all. Atleast not yet like i said kinda seems like its been getting worse though. All this happened within like 2 weeks of one another so thats kinda why im not sure which it could be. I had the condensation issue first, fixed that and 4 days later had the recall reflash done. Truck felt sluggish but just thought it was from being back on the stock tune. 2 days after the recall i got the tune back on and thats where i noticed the boost issue. Flashed back to stock and noticed the issue persisted. So it very well could have started after the misfire and i just really didnt notice it.
Title: Re: F150 Boost pressure feels limited
Post by: Defhd10 on March 23, 2020, 08:15:28 PM
Scanning back I do not see any datalogs .. im curious what the DSD boost is and actaul boost is combined with the wastegate %% and actual-throttle + Throttle position ...
I have a few datalogs i could send if need be. Im not sure they have all of what youd be looking for, but the few people that did look at them are telling me the trucks making the power its calling for.
Title: Re: F150 Boost pressure feels limited
Post by: TopherSho on March 23, 2020, 08:26:35 PM
Send what ya got sir ... curious ..
Title: Re: F150 Boost pressure feels limited
Post by: Defhd10 on March 23, 2020, 10:15:59 PM
Send what ya got sir ... curious ..
Pm sent. Thank you sir.
Title: Re: F150 Boost pressure feels limited
Post by: TopherSho on March 24, 2020, 12:21:07 AM
Have you launched in 4wd ...
Title: Re: F150 Boost pressure feels limited
Post by: Defhd10 on March 24, 2020, 08:35:12 AM
Have you launched in 4wd ...
Negative. Ive never launched in 4wd. Or ever did a boosted launch at all.
Title: Re: F150 Boost pressure feels limited
Post by: TopherSho on March 24, 2020, 10:02:51 AM
okedokey...   

Whats bugging topher is this :

#1) I can see the boost is steady from the MAP .. BUT the Throttle-Actual in many cases is fluttering as compared to the throttle position,  and along with the Throttle-Actual is Wastegate %% .. so your foot goes down slow and steady,  but the throttle blade, wategate are blipping up and down.  In some cases its more then 7% but less than 10% .. in other sections it is fluttering 10-17% and you would feel that as a surge.  Most of this fluttering is around 30-50% throttle.  under WoT i do not see the same behavior. BUT then we get to #2 ..

#2)  I do not log the Slippage of the TQ converter.  Never needed to.  so When i look at yours i cannot say ''oh there it is...'' BUT i find it damn coincidental that your TQ-slip logs look jittery as hell ''around'' the same time the flutter seems creep up.

so for me IMO my next step would be this :
#1) find someone who has a data log of normal driving + WoT who is logging TQ-slip and compare ..
#2) crawl under truck,  check the ??speed sensor??  (Z/SHODD confirm speed sensor location) PHYSICALLY,  check terminal, loose etc..

My thought goes to a previous ''surging'' case where a bad speed sensor cause the upstream ECU to rapidly adjust throttle and by proxy boost waste % beacuse the ECU has zero clue WTF is going on past the input signal.

other possibility .. bad TQ-converter ..  in this case i am thinking of ''chatter'' versus outright slipping




Title: Re: F150 Boost pressure feels limited
Post by: SHOdded on March 24, 2020, 10:17:06 AM
the interaction between engine and trans control makes it a heck of a debugging exercise

The speed sensors are behind a plastic cover (main control cover) on the side of the transmission for the 6F55, not sure how it is setup for the F150s (6R80?).
Title: Re: F150 Boost pressure feels limited
Post by: Defhd10 on March 24, 2020, 10:34:20 AM
okedokey...   

Whats bugging topher is this :

#1) I can see the boost is steady from the MAP .. BUT the Throttle-Actual in many cases is fluttering as compared to the throttle position,  and along with the Throttle-Actual is Wastegate %% .. so your foot goes down slow and steady,  but the throttle blade, wategate are blipping up and down.  In some cases its more then 7% but less than 10% .. in other sections it is fluttering 10-17% and you would feel that as a surge.  Most of this fluttering is around 30-50% throttle.  under WoT i do not see the same behavior. BUT then we get to #2 ..

#2)  I do not log the Slippage of the TQ converter.  Never needed to.  so When i look at yours i cannot say ''oh there it is...'' BUT i find it damn coincidental that your TQ-slip logs look jittery as hell ''around'' the same time the flutter seems creep up.

so for me IMO my next step would be this :
#1) find someone who has a data log of normal driving + WoT who is logging TQ-slip and compare ..
#2) crawl under truck,  check the ??speed sensor??  (Z/SHODD confirm speed sensor location) PHYSICALLY,  check terminal, loose etc..

My thought goes to a previous ''surging'' case where a bad speed sensor cause the upstream ECU to rapidly adjust throttle and by proxy boost waste % beacuse the ECU has zero clue WTF is going on past the input signal.

other possibility .. bad TQ-converter ..  in this case i am thinking of ''chatter'' versus outright slipping
If i recall correctly, i believe the recall was to reprogram the pcm for an intermittent failure of the output speed sensor.  Is it possible at the time of the flash, it messed that all up?  I will have to look into where its located on these transmissions, although i havent messed with anything under the vehicle so im not sure if anything would be loose but never know. Does this explain why though when pulling hills trying to maintain speed, my boost is being limited to that certain point?  This past weekend i did 2 more logs, one on my truck and one on my dads thats the exact same truck with the exact same strategy. As soon as our internet starts working again i can send you those 2 logs to compare. They are the same driving style and route. I added a few other pids like fuel pressure to monitor but nothing stood out to me but of course i dont know what im looking for.
Title: Re: F150 Boost pressure feels limited
Post by: TopherSho on March 24, 2020, 11:18:28 AM
The new logs will be perfect. 

As for speed sensor effects it is outright voodoo. 

My thought falls to the sensor VOLTAGE .. it may be falling / spiking out of the expected range **of the new ECU\TCU updates**  where as the old ECU parameters were more tolerant.  As for why under load... I am unsure.  But a bad Tq-converter and or Speed sensor - or bad wiring from the speed sensor is a very strong possibility.   Still cannot rule out a bad wastegate..

But for sure logs will help with a review of you Fathers TQ-slip readings if it is from the exact same hill on the same day .. if his truck lacks ''jitter'' on the logs it becomes my #1 suspect. 


Title: Re: F150 Boost pressure feels limited
Post by: TopherSho on March 24, 2020, 11:22:26 AM
Was there any TCU updates applied for the bulletin?   Are we 100% sure if so the TCU update was applied?   If your fathers truck is the same year / build i'd be curious what IDS says the revision of TCU each truck has.

But for now focus is logs > speed sensor > speed sensor wiring > TQ-converter health .. at least that's where my head goes for this bizarre behavior
Title: Re: F150 Boost pressure feels limited
Post by: Defhd10 on March 24, 2020, 11:50:20 AM
Was there any TCU updates applied for the bulletin?   Are we 100% sure if so the TCU update was applied?   If your fathers truck is the same year / build i'd be curious what IDS says the revision of TCU each truck has.

But for now focus is logs > speed sensor > speed sensor wiring > TQ-converter health .. at least that's where my head goes for this bizarre behavior
Soon as we get internet ill get the logs over to you. They are on the same day with the same driving style on the same route. His truck is the same as mine to a T. Only difference is color. Exact build dates im not 100% on but i think they are within 3 months of each other. I dont have my exact letter i got in the mail for the recall, but this is all it said so im not sure of TCU updates. Would forscan tell me the revision?
Title: Re: F150 Boost pressure feels limited
Post by: TopherSho on March 24, 2020, 11:53:26 AM
Sorry boss,  im unsure on FSCAN .. 
Title: Re: F150 Boost pressure feels limited
Post by: TopherSho on March 24, 2020, 11:56:53 AM
Was there any TCU updates applied for the bulletin?   Are we 100% sure if so the TCU update was applied?   If your fathers truck is the same year / build i'd be curious what IDS says the revision of TCU each truck has.

But for now focus is logs > speed sensor > speed sensor wiring > TQ-converter health .. at least that's where my head goes for this bizarre behavior
Soon as we get internet ill get the logs over to you. They are on the same day with the same driving style on the same route. His truck is the same as mine to a T. Only difference is color. Exact build dates im not 100% on but i think they are within 3 months of each other. I dont have my exact letter i got in the mail for the recall, but this is all it said so im not sure of TCU updates. Would forscan tell me the revision?

Did the dealer change your transmission fluid?  Or add fluid .. and were you rubbing non-oem fluid prior to the 'service'  ?  -->  just thinking outside the box of ''what if'' they mixed fluid types if you have non-oem tranny fluid,  or the tranny fluid is too low or too high. 
Title: Re: F150 Boost pressure feels limited
Post by: Defhd10 on March 24, 2020, 01:06:12 PM
Was there any TCU updates applied for the bulletin?   Are we 100% sure if so the TCU update was applied?   If your fathers truck is the same year / build i'd be curious what IDS says the revision of TCU each truck has.

But for now focus is logs > speed sensor > speed sensor wiring > TQ-converter health .. at least that's where my head goes for this bizarre behavior
Soon as we get internet ill get the logs over to you. They are on the same day with the same driving style on the same route. His truck is the same as mine to a T. Only difference is color. Exact build dates im not 100% on but i think they are within 3 months of each other. I dont have my exact letter i got in the mail for the recall, but this is all it said so im not sure of TCU updates. Would forscan tell me the revision?

Did the dealer change your transmission fluid?  Or add fluid .. and were you rubbing non-oem fluid prior to the 'service'  ?  -->  just thinking outside the box of ''what if'' they mixed fluid types if you have non-oem tranny fluid,  or the tranny fluid is too low or too high.
Negative on a fluid change. Fluid thats in it is the same thats been in it from day one. Truck was only at the dealership for 20 minutes if that for the reprogramming. When the surging first began from the condensation i checked my tranny fluid and its right where it needs to be. Nor did it look dirty or smell burnt.
Title: Re: F150 Boost pressure feels limited
Post by: TopherSho on March 26, 2020, 01:08:16 PM
thanks for the logs..

So we have some good news and interesting news.  from the 275+ seconds (WoT)

Both TQ-converters 'behave' in the logs the same.  Assumption,  there fine.
RPM curves are basically the same, so the 'power' is the same.  IE it is able to make' the requested power.

BUT ::
yours 100% has a fueling issue.  Your OAR keeps fluttering.  His is rock steady.

Yours has much larger more abrupt spikes in throttle blade position under WoT, unsure about the meaning at this time but it is a very noticeable metric
Yours has LTFT elevated under WoT as compared to your fathers rig,  in particular Bank#1 .. its only .5 off... but it is a difference to note and again points to a fueling issue

STFT are both erratic .. still sorting that out
YOUR waste-gates are operating 10% higher when ramping to 3rd gear,  i seem to recall you have rebuilt yours so it is a metric id discount.. but noted

Both have solid AFR so the ecu in yours is doing its job to maintain proper mix.. but the fluttering OAR is suspicious.  I am surprised the tuner did not comment on it ..

(https://scontent-sea1-1.xx.fbcdn.net/v/t1.0-9/91175557_10157217299687685_1816478258028347392_o.jpg?_nc_cat=104&_nc_sid=8024bb&_nc_oc=AQm5otwYyuHhgse05zJT4kjoeac13ZYJ2PDYI6Q3botRhjF7sjy2sTJgJX926wSgJnw&_nc_ht=scontent-sea1-1.xx&oh=b862d923e4193759d005754b7439ec38&oe=5EA2C033)

so not the TQ-converter or sending unit.  this looks like it is going backwards to a fueling issue,  or a issue with the intercooler having A LOT LOT LOT of flammable goop in it.

Out of curiosity ... how much oil are you putting in the truck between oil changes?
Title: Re: F150 Boost pressure feels limited
Post by: Defhd10 on March 26, 2020, 02:44:43 PM
thanks for the logs..

So we have some good news and interesting news.  from the 275+ seconds (WoT)

Both TQ-converters 'behave' in the logs the same.  Assumption,  there fine.
RPM curves are basically the same, so the 'power' is the same.  IE it is able to make' the requested power.

BUT ::
yours 100% has a fueling issue.  Your OAR keeps fluttering.  His is rock steady.

Yours has much larger more abrupt spikes in throttle blade position under WoT, unsure about the meaning at this time but it is a very noticeable metric
Yours has LTFT elevated under WoT as compared to your fathers rig,  in particular Bank#1 .. its only .5 off... but it is a difference to note and again points to a fueling issue

STFT are both erratic .. still sorting that out
YOUR waste-gates are operating 10% higher when ramping to 3rd gear,  i seem to recall you have rebuilt yours so it is a metric id discount.. but noted

Both have solid AFR so the ecu in yours is doing its job to maintain proper mix.. but the fluttering OAR is suspicious.  I am surprised the tuner did not comment on it ..

(https://scontent-sea1-1.xx.fbcdn.net/v/t1.0-9/91175557_10157217299687685_1816478258028347392_o.jpg?_nc_cat=104&_nc_sid=8024bb&_nc_oc=AQm5otwYyuHhgse05zJT4kjoeac13ZYJ2PDYI6Q3botRhjF7sjy2sTJgJX926wSgJnw&_nc_ht=scontent-sea1-1.xx&oh=b862d923e4193759d005754b7439ec38&oe=5EA2C033)

so not the TQ-converter or sending unit.  this looks like it is going backwards to a fueling issue,  or a issue with the intercooler having A LOT LOT LOT of flammable goop in it.

Out of curiosity ... how much oil are you putting in the truck between oil changes?
Thank you so much for comparing these and getting back to me. Like i said i dont know how to read them so i appreciate you taking the time to do so. A fuel issue has been in my mind but wasnt sure about it or what to look for. Also good to hear on the TQ converter, was really hoping it wasnt tranny related as from my research these transmissions have no external sensors or modules. Everything is internal in the lead frame.

Oil changes are every 5000 miles religiously,  usually even a couple 100 miles before i reach the 5000.  I did pull the intercooler again last week to take a look, and there was some oil in it, but no more then what it was when i swapped it out for the wagner a year ago.

I will add this, back when this all started prior to finding all the water in my intercooler that caused the misfire, i did dump a bottle of heet in thinking maybe i possibly got a bad batch of fuel. That made no difference so i made sure to run a full tank through. After that tank, i dumped a bottle of techron in to see if that would change anything. Of course it did not, but could i have created the problem by doing this? 
Title: Re: F150 Boost pressure feels limited
Post by: TopherSho on March 26, 2020, 04:11:25 PM
I will add this, back when this all started prior to finding all the water in my intercooler that caused the misfire, i did dump a bottle of heet in thinking maybe i possibly got a bad batch of fuel. That made no difference so i made sure to run a full tank through. After that tank, i dumped a bottle of techron in to see if that would change anything. Of course it did not, but could i have created the problem by doing this?

No sir,  Those additives are very flammable,  they would not affect the OAR like this with the ratio of fluids.  HEET is meth,  our engines love meth until it is to much for the fuel system and have different issues.   Are you buying the same gas as whats in the other rig? 

I wonder .. hey Z/SHOdded has anyone reported issues with the data/voltage from Ethanol sensors?  Where would you look to check the harness? ..

EDIT;  I don't have access to it,  but I think there is a PID fore the Ethanol sensor .. have the tuner add it in and relog.
Title: Re: F150 Boost pressure feels limited
Post by: SHOdded on March 26, 2020, 04:48:36 PM
Ethanol sensor?  IDK if there is any for the F150, there is none on the SHO.  It is all based off the knock sensor response/data, not ethanol content.
Title: Re: F150 Boost pressure feels limited
Post by: Defhd10 on March 26, 2020, 05:11:11 PM
I will add this, back when this all started prior to finding all the water in my intercooler that caused the misfire, i did dump a bottle of heet in thinking maybe i possibly got a bad batch of fuel. That made no difference so i made sure to run a full tank through. After that tank, i dumped a bottle of techron in to see if that would change anything. Of course it did not, but could i have created the problem by doing this?

No sir,  Those additives are very flammable,  they would not affect the OAR like this with the ratio of fluids.  HEET is meth,  our engines love meth until it is to much for the fuel system and have different issues.   Are you buying the same gas as whats in the other rig? 

I wonder .. hey Z/SHOdded has anyone reported issues with the data/voltage from Ethanol sensors?  Where would you look to check the harness? ..

EDIT;  I don't have access to it,  but I think there is a PID fore the Ethanol sensor .. have the tuner add it in and relog.
Both of us run sunoco fuel from all the different stations around here. He runs 87 octane and i have used 89 for the past 3 years being mine was tuned for 89. Currently im not actively working with the tuner on this since its im having the problem on the stock tune, and when i first noticed the problem and sent a log, all i got back was a revision to try with no explanation or acknowledgement of the issue. Im not bad mouthing anyone by any means but i felt it was clear i was on my own with this one.  I could look for an ethanol pid and see if it shows anything, but ive never seen it mentioned or ever heard of it on the f150s as well.
Title: Re: F150 Boost pressure feels limited
Post by: TopherSho on March 26, 2020, 05:23:57 PM
dang it i got my words crossed up.. I meant Flex Fuel sensor .. :P
Title: Re: F150 Boost pressure feels limited
Post by: SHOdded on March 26, 2020, 06:38:59 PM
They have one for the regular Taurii that are flex fuel capable, but none otherwise.  Same for F150 I expect.
Title: Re: F150 Boost pressure feels limited
Post by: Defhd10 on March 26, 2020, 07:13:02 PM
So any ideas on where to start or what to do now at this point?  Could this explain why my turbos are much louder but yet being limited to 7lbs when not under wot?  Or do i just still have a really bad batch of fuel in my tank?  I didnt see a pid for the high pressure fuel pump.  Could there be something wrong with it causing these problems?  I appreciate all the help guys.
Title: Re: F150 Boost pressure feels limited
Post by: TopherSho on March 26, 2020, 11:05:42 PM
the OAR value should not drop like that,  could it be bad gas?  maybe?  But I assume you have been fueling more than once recently so I think the likelihood is less for bad fuel.  To much Ethanol is a possibility,  but you would have to run north of E30 to see it,  and as soon as you fueled up again with 92 it would resolve.

With the comment from SHOdded that you may not have a true flexfuel sensor for that year were back to possible O2 sensors.. your cats seemed fine as compared to your fathers.  O2's they play a large role in determining fuel 'type'.  are you 100% certain the dealer really replaced the o2's  and did they do the fronts AND back ?

Title: Re: F150 Boost pressure feels limited
Post by: SHOdded on March 26, 2020, 11:37:57 PM
Def verify the O2s are new and not fouled out
Title: Re: F150 Boost pressure feels limited
Post by: Defhd10 on March 27, 2020, 09:34:36 AM
the OAR value should not drop like that,  could it be bad gas?  maybe?  But I assume you have been fueling more than once recently so I think the likelihood is less for bad fuel.  To much Ethanol is a possibility,  but you would have to run north of E30 to see it,  and as soon as you fueled up again with 92 it would resolve.

With the comment from SHOdded that you may not have a true flexfuel sensor for that year were back to possible O2 sensors.. your cats seemed fine as compared to your fathers.  O2's they play a large role in determining fuel 'type'.  are you 100% certain the dealer really replaced the o2's  and did they do the fronts AND back ?
Uh the dealer hasnt touched anything on the truck other then the reprogramming. Everything thats been swapped/changed was done by me so the o2s are the originals. Ill pull them this weekend to take a look and clean them. Plenty tanks of fuel have been ran through since the beginning of this so i dont foresee it being bad fuel either.
Title: Re: F150 Boost pressure feels limited
Post by: TopherSho on March 27, 2020, 12:31:36 PM
the OAR value should not drop like that,  could it be bad gas?  maybe?  But I assume you have been fueling more than once recently so I think the likelihood is less for bad fuel.  To much Ethanol is a possibility,  but you would have to run north of E30 to see it,  and as soon as you fueled up again with 92 it would resolve.

With the comment from SHOdded that you may not have a true flexfuel sensor for that year were back to possible O2 sensors.. your cats seemed fine as compared to your fathers.  O2's they play a large role in determining fuel 'type'.  are you 100% certain the dealer really replaced the o2's  and did they do the fronts AND back ?
Uh the dealer hasnt touched anything on the truck other then the reprogramming. Everything thats been swapped/changed was done by me so the o2s are the originals. Ill pull them this weekend to take a look and clean them. Plenty tanks of fuel have been ran through since the beginning of this so i dont foresee it being bad fuel either.

Sorry on the parts touching ;) .. I remember now that you did the hardware.  In my head cleaning my help,  but if the tips are embedded with debris or the voltage coming out of them is out of range the ECU may still be doing the unusual adjustments.  Im still a bit perplexed with the throttle actual behavior but the OAR sinking like a rock is all we have to go on :/
Title: Re: F150 Boost pressure feels limited
Post by: Defhd10 on March 27, 2020, 12:53:45 PM
the OAR value should not drop like that,  could it be bad gas?  maybe?  But I assume you have been fueling more than once recently so I think the likelihood is less for bad fuel.  To much Ethanol is a possibility,  but you would have to run north of E30 to see it,  and as soon as you fueled up again with 92 it would resolve.

With the comment from SHOdded that you may not have a true flexfuel sensor for that year were back to possible O2 sensors.. your cats seemed fine as compared to your fathers.  O2's they play a large role in determining fuel 'type'.  are you 100% certain the dealer really replaced the o2's  and did they do the fronts AND back ?
Uh the dealer hasnt touched anything on the truck other then the reprogramming. Everything thats been swapped/changed was done by me so the o2s are the originals. Ill pull them this weekend to take a look and clean them. Plenty tanks of fuel have been ran through since the beginning of this so i dont foresee it being bad fuel either.

Sorry on the parts touching ;) .. I remember now that you did the hardware.  In my head cleaning my help,  but if the tips are embedded with debris or the voltage coming out of them is out of range the ECU may still be doing the unusual adjustments.  Im still a bit perplexed with the throttle actual behavior but the OAR sinking like a rock is all we have to go on :/
Its all good and again i greatly appreciate all the help.  Maybe the water indigestion and misfire caused the o2s to get out of sync i dont know. I really wish it would throw a code. It would make me feel alot better if the truck knew there was a problem going on. I did try my dads throttle body awhile back thinking maybe a throttle position sensor issue, but of course it didnt change anything.
Title: Re: F150 Boost pressure feels limited
Post by: TopherSho on March 27, 2020, 02:14:11 PM
NP! 
Title: Re: F150 Boost pressure feels limited
Post by: Defhd10 on March 29, 2020, 03:14:19 PM
Decided im not going to touch the o2s. Atleast not yet. Im not getting any codes associated with them like i should if they were a problem, and i dont want to ruin them by attempting to clean. To the point now im going to run it until it throws a code or a rod. Really dont care at this point. Ive wasted so much time and money and not one single thing i do makes any bit of improvement.  Really appreciate all the help guys, but ive pretty much given up. If i knew what it was i wouldnt have a problem spending the money to fix it, but im done wasting my money on the things that wont fix it.
Title: Re: F150 Boost pressure feels limited
Post by: TopherSho on March 30, 2020, 10:58:36 AM
I'd be very careful tossing a rod,  if the dealership/ford network/warranty-company has you marked down as 'modified' they will not honor a engine rebuild.  I ran into that with my Bad injector taking my block out.  I had to pay out of pocket.

Understand the frustration though...
Title: Re: F150 Boost pressure feels limited
Post by: SM105K on March 30, 2020, 12:42:25 PM
The Dealership did it.  It most likely corrupted the ECU with the new flash. 
Title: Re: F150 Boost pressure feels limited
Post by: Defhd10 on March 30, 2020, 01:38:42 PM
I'd be very careful tossing a rod,  if the dealership/ford network/warranty-company has you marked down as 'modified' they will not honor a engine rebuild.  I ran into that with my Bad injector taking my block out.  I had to pay out of pocket.

Understand the frustration though...
Im already out of warranty, so nothing really to lose at this point.
Title: Re: F150 Boost pressure feels limited
Post by: Defhd10 on March 30, 2020, 01:46:51 PM
The Dealership did it.  It most likely corrupted the ECU with the new flash.
I would like to believe this is true, but i really dont know. I had too many things happen at once for me to point it directly at the flash. Im mostly leaning towards the condensation causing the problem. I cant confirm 100% what the boost was directly after the misfire because i was stock tuned and wasnt paying any attention. As soon as i got the tune back on is when i noticed the problem. And when switching back to stock i noticed it was still present because i was paying attention to it. Granted this was after the dealer flash, but i still cant confirm thats what caused it.
Title: Re: F150 Boost pressure feels limited
Post by: Defhd10 on April 05, 2020, 05:25:45 PM
Curiosity got the best of me today so i pulled my o2 sensors as well as dropping the downpipe to take a look at the back side of the turbos. The o2 sensors look fine. Driver side looks the same as the passenger side. The back side of the turbos look fine too. I was really hoping to find a wore out wastegate, but of course i didnt. Both are seated when closed and no play when open. With that said i feel like ive explored all my options at this point.

Does anyone know why i would have erratic OAR like Topher pointed out?  Ive fuelled from a different station that i normally do that past 2 fillups and used 93 octane rather then 89. I will say that the truck does feel like its running a bit smoother on the 93, but still having the boost limited to 7 lbs. Im trying not to give up on this thing, but the end is near.
Title: Re: F150 Boost pressure feels limited
Post by: Defhd10 on April 08, 2020, 11:42:31 PM
Okay guys the truck finally threw 2 codes tonight. Both related to throttle position voltage to low. Now i had tried a throttle body in the past with no change, do you think it could be the accelerator pedal?
Title: Re: F150 Boost pressure feels limited
Post by: SHOdded on April 09, 2020, 02:48:04 AM
Both codes are pointing to the wawa pedal, not the throttle body, so that's what I would check first.  Highly unusual for it to be that, but if there has been water intrusion of any kind, then it is quite possible.

P2122 - Throttle/Pedal Position Sensor/Switch D Circuit Low

Description:  This DTC sets when the accelerator pedal position 1 (APP1) is out of self-test range low. 
Possible Causes:  APP1 circuit open
APP1 circuit short to ground
Damaged APP sensor
 
Diagnostic Aids:  An APP1 or APP_D sensor PID reading may indicate a concern. 
Application   Key On Engine Off  Key On Engine Running  Continuous Memory 
All     GO to Pinpoint Test DK . 


P2127 - Throttle/Pedal Position Sensor/Switch E Circuit Low

Description:  This DTC sets when the accelerator pedal position 2 (APP2) is out of self-test range low. 
Possible Causes:  APP2 circuit open
APP2 circuit short to ground
Damaged APP sensor
 
Diagnostic Aids:  An APP2 or APP_E sensor PID reading may indicate a concern. 
Application   Key On Engine Off  Key On Engine Running  Continuous Memory 
All     GO to Pinpoint Test DK . 
Title: Re: F150 Boost pressure feels limited
Post by: Defhd10 on April 09, 2020, 08:26:46 AM
Both codes are pointing to the wawa pedal, not the throttle body, so that's what I would check first.  Highly unusual for it to be that, but if there has been water intrusion of any kind, then it is quite possible.

P2122 - Throttle/Pedal Position Sensor/Switch D Circuit Low

Description:  This DTC sets when the accelerator pedal position 1 (APP1) is out of self-test range low. 
Possible Causes:  APP1 circuit open
APP1 circuit short to ground
Damaged APP sensor
 
Diagnostic Aids:  An APP1 or APP_D sensor PID reading may indicate a concern. 
Application   Key On Engine Off  Key On Engine Running  Continuous Memory 
All     GO to Pinpoint Test DK . 


P2127 - Throttle/Pedal Position Sensor/Switch E Circuit Low

Description:  This DTC sets when the accelerator pedal position 2 (APP2) is out of self-test range low. 
Possible Causes:  APP2 circuit open
APP2 circuit short to ground
Damaged APP sensor
 
Diagnostic Aids:  An APP2 or APP_E sensor PID reading may indicate a concern. 
Application   Key On Engine Off  Key On Engine Running  Continuous Memory 
All     GO to Pinpoint Test DK .
Thank you!  Im going to try the pedal out of my dads truck this weekend and see if thats it.
Title: Re: F150 Boost pressure feels limited
Post by: SHOdded on April 09, 2020, 09:20:00 AM
Best of luck!
Title: Re: F150 Boost pressure feels limited
Post by: SM105K on April 09, 2020, 03:37:23 PM
I really hope this works for you. 
Title: Re: F150 Boost pressure feels limited
Post by: Defhd10 on April 09, 2020, 07:22:30 PM
I really hope this works for you.
Thanks man me too. Been doing alittle bit of reading. If its not the throttle pedal,  it could be a bad wiring harness or a bad pcm. Really hope its not either of those but i guess i will find out.
Title: Re: F150 Boost pressure feels limited
Post by: TopherSho on April 10, 2020, 04:26:39 PM
With the whacky OAR reading,  I am leaning to a harness issue or at the lower end of possibility a ECU causing it to adjust itself.  Have you pulled the harness off the ECU?   Z/SHOdded have seen corroded plugs before..
Title: Re: F150 Boost pressure feels limited
Post by: Defhd10 on April 10, 2020, 06:12:53 PM
With the whacky OAR reading,  I am leaning to a harness issue or at the lower end of possibility a ECU causing it to adjust itself.  Have you pulled the harness off the ECU?   Z/SHOdded have seen corroded plugs before..
I have pulled the 2 main harnesses off the pcm and everything looks fine there. Nothings corroded
Title: Re: F150 Boost pressure feels limited
Post by: ZSHO on April 11, 2020, 06:56:18 AM
There should be 3 harnesses connectors!  For reference here is good link for ya. I think you Need to provide as-built-data. Z

https://circuitboardmedics.com/ford/
Title: Re: F150 Boost pressure feels limited
Post by: Defhd10 on April 11, 2020, 09:55:42 AM
There should be 3 harnesses connectors!  For reference here is good link for ya. I think you Need to provide as-built-data. Z

https://circuitboardmedics.com/ford/
Only 2 on mine unless im missing something
Title: Re: F150 Boost pressure feels limited
Post by: Defhd10 on April 11, 2020, 11:53:40 AM
Pedal is on and codes are cleared. It does feel alot better and seems to be holding 6th alot longer before a downshift,  but im still not 100% if its fixed. Boost still looks to be the same, but i havent put my tune on to see if it increases. I want to run stock for alittle to see if codes return and if it starts acting up again.
Title: Re: F150 Boost pressure feels limited
Post by: SHOdded on April 11, 2020, 07:24:31 PM
Oh man!  Really hope the PCM is not bricked!  It should detect issues with the MAP sensors but ... are both identical on your F150?
Title: Re: F150 Boost pressure feels limited
Post by: Defhd10 on April 11, 2020, 07:57:28 PM
Oh man!  Really hope the PCM is not bricked!  It should detect issues with the MAP sensors but ... are both identical on your F150?
Both MAP sensors identical or what are you asking?  So far no more codes after switching out the pedal and it does feel somewhat better, BUT i did put my pedal in my dads truck, and his still runs perfect. So is it just in my head that mine feels better maybe. I guess i need a few more days to see what it does.
Title: Re: F150 Boost pressure feels limited
Post by: SHOdded on April 12, 2020, 01:33:26 AM
yeah it might be a placebo effect ...  I was wondering if both are 2.5 bar sensors or if one is 2 the other is 3 like on the SHO.  If they are identical, swap them and see if you see a change in behavior.  That kind of thing.
Title: Re: F150 Boost pressure feels limited
Post by: ZSHO on April 12, 2020, 07:43:19 AM
Is the wastegate hose intact based on the pic below! 
I would not give up on this truck that easily IMHO! Z
Title: Re: F150 Boost pressure feels limited
Post by: SHOdded on April 12, 2020, 07:57:03 AM
Yeah, I mean, you can always contact Ford Customer Service and tell them that your truck has been misbehaving since this flash update was applied.  If they have something (engineering team), they can help you right away, or call on the engineering team to look into it.  This is a big deal, and they want their F150 customer base, as far as I can tell LOL.
Title: Re: F150 Boost pressure feels limited
Post by: Defhd10 on April 12, 2020, 09:08:35 AM
yeah it might be a placebo effect ...  I was wondering if both are 2.5 bar sensors or if one is 2 the other is 3 like on the SHO.  If they are identical, swap them and see if you see a change in behavior.  That kind of thing.
I believe the one before the trottle body is a 2 bar and the one on top of the intake is a 2.5.
Title: Re: F150 Boost pressure feels limited
Post by: Defhd10 on April 12, 2020, 09:11:36 AM
Is the wastegate hose intact based on the pic below! 
I would not give up on this truck that easily IMHO! Z
Yes the hose is attached. It does kind of look like its not in the pic, but it is in fact attached. Im trying my best not to give up, but ive been battling this issue for 2 months now with no fix. Although atleast i now have codes that i can tell the dealer if i chose to take it to them to look at
Title: Re: F150 Boost pressure feels limited
Post by: Defhd10 on April 12, 2020, 09:17:27 AM
Yeah, I mean, you can always contact Ford Customer Service and tell them that your truck has been misbehaving since this flash update was applied.  If they have something (engineering team), they can help you right away, or call on the engineering team to look into it.  This is a big deal, and they want their F150 customer base, as far as I can tell LOL.
I think for right now im just going to run it for the next few weeks and see if things continue to get worse or if codes get set again. If they do i think at that point i will take it to the dealer for them to diagnose. Atleast now i have something to tell them to look at being i got the codes.
Title: Re: F150 Boost pressure feels limited
Post by: SHOdded on April 12, 2020, 12:40:21 PM
True enuf.
Title: Re: F150 Boost pressure feels limited
Post by: Defhd10 on April 18, 2020, 02:49:14 PM
Well its been a week on the different pedal so thought id give a small update. Codes havent came back but the truck is running the exact same as it was before if not worse. So i imagine its only a matter of time until the codes do come back. Boost is still low and still surges from time to time.
Title: Re: F150 Boost pressure feels limited
Post by: SHOdded on April 18, 2020, 07:39:16 PM
Boo! Bah, humbug.
Title: Re: F150 Boost pressure feels limited
Post by: Defhd10 on April 18, 2020, 11:02:20 PM
Really just disappointed at this point. On a side note my dad has been running the pedal that came out of my truck this week and his is still running perfect. No symptoms that mine had and still has.
Title: Re: F150 Boost pressure feels limited
Post by: SHOdded on April 19, 2020, 07:31:53 AM
yeah, it is very possible the pcm has bought the farm, like sm105k said earlier.  unfortunately it is not a straight swap from your dad's truck to yours, due to security issues which would not allow your vehicle to start/run.  You would have to be out of pocket for a new pcm unless you can convince the dealer to return to the last revision, or asbuilt version.

If a faulty piece of hardware cannot be found, either a sensor is dead or the computer that takes input from the sensor is corrupted.  If a sensor is dead, the computer sets the appropriate code.  You can try putting in new MAP sensors, but that is a pure parts cannon play.  May or may not work.  We used to have problems with Gen 1 & 2 SHOs where the PCM would not have any codes, seem to be working properly, but in reality, needed to be replaced/exorcised.
Title: Re: F150 Boost pressure feels limited
Post by: Defhd10 on April 19, 2020, 09:23:09 AM
yeah, it is very possible the pcm has bought the farm, like sm105k said earlier.  unfortunately it is not a straight swap from your dad's truck to yours, due to security issues which would not allow your vehicle to start/run.  You would have to be out of pocket for a new pcm unless you can convince the dealer to return to the last revision, or asbuilt version.

If a faulty piece of hardware cannot be found, either a sensor is dead or the computer that takes input from the sensor is corrupted.  If a sensor is dead, the computer sets the appropriate code.  You can try putting in new MAP sensors, but that is a pure parts cannon play.  May or may not work.  We used to have problems with Gen 1 & 2 SHOs where the PCM would not have any codes, seem to be working properly, but in reality, needed to be replaced/exorcised.
I really feel it could be the pcm, i mean with the boost being so low lately you would think surely it would throw an underboost code. But i guess it wouldnt if thats all the pcm is commanding. Is it possible for a misfire to damage the pcm?  Because i really feel that this is when everything started.
Title: Re: F150 Boost pressure feels limited
Post by: SHOdded on April 19, 2020, 11:08:29 AM
Misfires dont generally damage the pcm to the extent of disabling it.  Coil or injector drivers yes.  But it feels like a logic failure to me.
Title: Re: F150 Boost pressure feels limited
Post by: SHOdded on April 19, 2020, 11:10:13 AM
You can ask circuitboarmedics.com if they will transfer configs to a known good pcm.  Lower cost alternative  to brand new. Let them know what happened.
Title: Re: F150 Boost pressure feels limited
Post by: Defhd10 on June 22, 2020, 05:30:28 PM
So alittle over 2 months now since ive replaced the throttle pedal and to this day the codes havent yet returned,  but no fix has been found. Boost still maxing at 7lbs. Alot of times having little to no boost midway through a hill then all of a sudden itll spike and hold at 7lbs. Almost always boost spikes when it changes gears. I cant for the life of me figure it out. Had a bad experience a week ago when towing.  Came out of a turn and began to push the accelerator pedal and nothing happened. No boost, no acceleration no change in rpms just totally nothing as i continued to push the pedal further for about 5 seconds which felt like a lifetime.  Then out of nowhere a big boost spike then slowly we began accelerating. I just dont understand why im having this issue or what caused it.
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