Knock with stock tune at WOT.

AJP turbo · August 02, 2015, 02:39:21 PM

Quote from: curry67 on August 02, 2015, 02:31:30 PM
So would thst explain higher knock readings on higher octane?

Sent from my SM-N910W8 using Tapatalk

Maybe....But you really need to have someone verify on a log just to make sure that's really what you have. Then I would want to look for trends....5 and 6 is a little high...If it's an isolated event then no biggie. If it continues then your timing tables need work and are over advanced and you are relying on the knock sensors.

Take your device and under user options retard the spark by 4 or 6 degrees and see if it's better...If it is then your spark tables are over advanced.

I like my knock sensor readings to be like my short term fuel trims.....They should hover around 0. A little above and below is good.

curry67 · August 02, 2015, 02:42:24 PM

Quote from: ajpturbo on August 02, 2015, 02:39:21 PM
Quote from: curry67 on August 02, 2015, 02:31:30 PM
So would thst explain higher knock readings on higher octane?

Sent from my SM-N910W8 using Tapatalk

Maybe....But you really need to have someone verify on a log just to make sure that's really what you have. Then I would want to look for trends....5 and 6 is a little high...If it's an isolated event then no biggie. If it continues then your timing tables need work and are over advanced and you are relying on the knock sensors.

Take your device and under user options retard the spark by 4 or 6 degrees and see if it's better...If it is then your spark tables are over advanced.

I like my knock sensor readings to be like my short term fuel trims.....They should hover around 0. A little above and below is good.

Even on stock tune?

Sent from my SM-N910W8 using Tapatalk

AJP turbo · August 02, 2015, 02:47:26 PM

Log please..

Well it could've been isolated...Isolated could even mean a weekend or how long you had some fuel or how long a station had that fuel I dunno....

Seems like some of you folks from canadia land battle fuel troubles now and again eh?....And those cooler temps up there may lead to extra spark advance due to the IAT compensation tables...As IAT's are cooler the ECU will add some timing also

FoMoCoSHO · August 02, 2015, 03:28:22 PM

Quote from: curry67 on August 02, 2015, 02:42:24 PM
Quote from: ajpturbo on August 02, 2015, 02:39:21 PM
Quote from: curry67 on August 02, 2015, 02:31:30 PM
So would thst explain higher knock readings on higher octane?

Sent from my SM-N910W8 using Tapatalk

Maybe....But you really need to have someone verify on a log just to make sure that's really what you have. Then I would want to look for trends....5 and 6 is a little high...If it's an isolated event then no biggie. If it continues then your timing tables need work and are over advanced and you are relying on the knock sensors.

Take your device and under user options retard the spark by 4 or 6 degrees and see if it's better...If it is then your spark tables are over advanced.

I like my knock sensor readings to be like my short term fuel trims.....They should hover around 0. A little above and below is good.
Even on stock tune?

Sent from my SM-N910W8 using Tapatalk

X2 on that ?

curry67 · August 02, 2015, 04:06:27 PM

Got a log with 6 wot pulls upload it when I get home

Sent from my SM-N910W8 using Tapatalk

curry67 · August 02, 2015, 06:34:53 PM

heres a link to my datalog.

https://drive.google.com/file/d/0BzPC7uX6FB_Abm9VX1BYc0k1bEU/view?usp=sharing

SHOdded · August 02, 2015, 07:09:15 PM

That is one gargantuan log file, curry! Working on it now.

AJP turbo · August 02, 2015, 07:16:32 PM

Your Wot pulls are very short. Good data goes along way when logging....can be tough on the street though...I have my good secret places to log where I live.

Your not really giving the car time to settle into a nice pull. I did see one of the WOT pulls though where there was no knock sensor readings. Even though you had some knock sensor readings your timing did not look overly advanced. I saw spark around 13-16 degrees so that's fine....But you did have more knock sensor activity than I would expect to see on a stock tune. I wouldn't be worried but I would watch for trends and see if it continues.

Try and get a nice long pull if you can. at least 2 or 3 complete gears or 80 mph of acceleration. Give it time to pull and see how it looks and if the entire pull has knock sensor readings.

Some have had to do the knock sensor wire mod. I have my doubts on if that does anything but some say it helped them. These ECU's are so busy and dependent on environmental conditions I can see coincidence and timing of the wire mod playing a factor. I can't see vibration and noise appearing as high knock readings....Why not low? And if the wire is so bad it was grounding out on people then the knock sensor PID would just flatline I would guess. But I have seen what people call false knock or ghost knock as reported from knock sensor due to aftermarket cams that have noisy valve trains or metallic noises from exhausts having an effect.

You should try and flash and pull 6 degrees or some dramatic amount like 10 to see if it's the tune...If it's not then you have a component or sensor failure maybe

That's what I see at this point...Does't look real bad though...Let the sensor do it's job..Or wait for a DTC....If you don't have a dtc it can't be that bad...This car basically has the ability to tell you if your farts contaminated your alcantara in the seats

SHOdded · August 02, 2015, 07:55:12 PM

I do see timing being retarded even at single-digit speeds, not just WOT. All in 1st gear, seems the banks are not sync'd for some time before & after the timing is retarded. In decel, after 3-1 downshift.

Assuming stock tune still.

curry67 · August 02, 2015, 10:45:29 PM

ya all stock tune. I gotta try to find a spot i guess probably have to drive outside the city.

FoMoCoSHO · August 02, 2015, 11:00:03 PM

Highway on ramps are always a good spot....

SHOdded · August 02, 2015, 11:52:22 PM

Make a note of any rattles or ticking noises you hear at any time. Want to eliminate cam phaser/timing chain involvement. What motor oil/filter are you running, BTW?

curry67 · August 03, 2015, 12:32:00 AM

i managed to get 2 decent pulls 1 good launch but i noticed one of the afr values goes to 0 for a bit seemed interesting. timed my 0 to 60 at 6 flat which isnt to great but i guess its a non pp and stock. also im 310 lol.
https://drive.google.com/file/d/0BzPC7uX6FB_AX3hvX3ZhRkE3dDg/view?usp=sharing

curry67 · August 03, 2015, 12:38:07 AM

Quote from: SHOdded on August 02, 2015, 11:52:22 PM
Make a note of any rattles or ticking noises you hear at any time. Want to eliminate cam phaser/timing chain involvement. What motor oil/filter are you running, BTW?

Motorcraft filter with Motorcraft full synthetic. dont really hear much while driving feels pretty smooth.

AJP turbo · August 03, 2015, 12:54:15 AM

Your bank 2 primary o2 sensor seems to have checked out....I don't know what that's all about...I would replace it....What's up with all the bad 02 sensors lately?...At one point it was reading 1.0 when the bank 1 sensor appeared to be reading normal....Then I saw it reading 0. That can't be good