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Rough idle, shaking when in d and taking foot off brake.

Started by polskifacet, May 30, 2016, 01:57:39 PM

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AJP turbo

#15
May 30, 2016, 11:20:48 PM
Quote from: polskifacet on May 30, 2016, 11:09:43 PM
The only problem I can her is an exhaust leak most likely off the turbo to downpipe connection.

Is it bad? I don't know if it's contributing to your problem or not but you need to get that fixed...My downpipe cracked and my stft's were all jacked up. It was annoying at the least and my car's idle was smoother after it was fixed.....An exhaust upstream of the primary 02 will cause mis fueling everywhere...WOT , idle, cruise
SCT Dealer/Custom Calibrator                        
Specializing in 3.5 Ecoboost   
Remote/email custom tuning including E85 blends 
Authorized retailer for all SCT devices. 
 
Former:2014 PP SHO
3 bar 93 tune, Airaid, Stainless Works non catted DP's  
405whp/520tq
Dyno
     
Current:2016 F150 2.7 Ecoboost
Tuning in progress

polskifacet

#16
May 31, 2016, 12:04:26 AM
It's only bad if I take my foot off the brake because it keeps jerking forward. Otherwise the exhaust note changed, it's louder and has a distinct lug lug lug to it. It feels like the motor is running uneven. All the plugs look ok. Compression tested the front 3 cylinders and they came back 170 psi. Still no codes or pending codes. Put in 2 bottles of HEET to maybe help if there was water in the fuel. Boosting 15-16 psi, no smoke from exhaust. I'm boggled. Only weird thing I see is the dramatic change in ltft changing 15-18 points now -9.
AEM Dryflo drop in. PP Transmission Cooler and thermostat. 160 tstat, 3 bar map, plugs, AJP 93 Tune, PP Shocks and Springs

ZSHO

#17
May 31, 2016, 07:16:50 AM
Polski it sounds like your DP as mentioned earlier have a large leak by the front turbo connection,did you install new gaskets? also check for any pinched wires from the front 02 sensor's,here's a pic of mine when changed and best of luck to ya.  Z   


2013 Performance Package SHO| Livernois Custom Methanol Tune|3-Bar Map|Reische-170-Stat|Full Race Tial-10psi BOV in Black|PPE-Gloss Black Hot Pipes|EPP Dual Intake in Gloss Black|PPE Catted DP|Corsa Sport Cat Back Exhaust|H&R Sport-Springs|CFM Performance Billet Valve Cover Breather In Gloss Black|Llumar 20%Ceramic window Tint|MSD Ignition Coils in Black|Extreme Roof Spoiler|Redline Fluids all around|Gearhead Intercooler|First-SHO With Direct Port Alky-VP-M1-100%-Methanol Injection|LMS-Custom-Dyno-Tuned @ 415whp-465wtq| Best Trap Speed of 115.54 mph|

FoMoCoSHO

#18
May 31, 2016, 12:44:57 PM
Is your LTFT -9 on both banks?

polskifacet

#19
May 31, 2016, 01:42:02 PM
As far as I remember, yes.
AEM Dryflo drop in. PP Transmission Cooler and thermostat. 160 tstat, 3 bar map, plugs, AJP 93 Tune, PP Shocks and Springs

polskifacet

#20
May 31, 2016, 04:06:47 PM
Do you guys happen to have the expected ohms of the coil packs and how to accurately test them? The turbo whine is sort of choppy so I am really leaning towards an ignition issue.
AEM Dryflo drop in. PP Transmission Cooler and thermostat. 160 tstat, 3 bar map, plugs, AJP 93 Tune, PP Shocks and Springs

SHOdded

#21
May 31, 2016, 05:09:53 PM Last Edit: May 31, 2016, 05:50:20 PM by SHOdded
The less resistance the better.  <1 ohm (primary) would be perfect in general.  Make sure the voltage at the connector from the PCM is also strong.  There are COP test tools you can buy also.  I cannot find secondary resistance specs, I guess you could just compare between all of them?

Here is a quick rundown on COPs in general:
! No longer available

Steps JB10 and JB11 spec out the acceptable secondary resistance:  5-6 KOhms with harness connector disconnected, 27.7047.7 KOhms with harness connector connected.

How the tests were on a Gen 3 SHO:
http://www.v8sho.com/SHO/CoilOnPlugTest.htm

Testing 3 wire COPs:
http://easyautodiagnostics.com/misc-index/cop-ignition-coil-tests-1
2007 Ford Edge SEL, Powerstop F/R Brake Kit, TXT LED 6000K Lo & Hi Beams, W16W LED Reverse Bulbs, 3BSpec 2.5w Map Lights, 5W Cree rear dome lights, 5W Cree cargo light, DTBL LED Taillights

If tuned:  Take note of the strategy code as you return to stock (including 3 bar MAP to 2 bar MAP) -> take car in & get it serviced -> check strategy code when you get car back -> have tuner update your tune if the strategy code has changed -> reload tune -> ENJOY!

glock-coma

#22
May 31, 2016, 07:17:45 PM
Man...v8sho.com. It's been awhile since I've seen that site. I used to go on there religiously when I had my 97 SHO. Changing the rear bank coils on that motor was a pita. You had to remove the upper intake manifold. I changed mine twice in the 107K I had it.
Luckily we have if a LITTLE easier now. 
2010 red candy metallic non PP 402B
AJPTURBO 2 BAR Tune Stock 14.1@100.3 / Tuned 12.83@107.7
K&N panel, RX OCC, Sp-534 @.30 Tint 50%F-35%R BOV bypass
1997 SHO silver frost (sold)
1990 SHO triple black 5-speed (saved my life)

polskifacet

#23
June 01, 2016, 10:36:38 AM
Couldn't do much troubleshooting last night. I will have a new coil pack tonight so hopefully my problems will be resolved. I did go for a drive, whomped it a bit and it runs good as ever. Peaked 16psi of boost. Afr's look in order. chirps the tires 1st and 2nd gear. Idle and under 3k rps is wonky.
AEM Dryflo drop in. PP Transmission Cooler and thermostat. 160 tstat, 3 bar map, plugs, AJP 93 Tune, PP Shocks and Springs

polskifacet

#24
June 02, 2016, 01:12:12 AM
100 psi in cylinder #2
AEM Dryflo drop in. PP Transmission Cooler and thermostat. 160 tstat, 3 bar map, plugs, AJP 93 Tune, PP Shocks and Springs

SHOdded

#25
June 02, 2016, 05:27:46 AM
How did you test for compression?  Carbon buildup on the valves on that cylinder maybe?
2007 Ford Edge SEL, Powerstop F/R Brake Kit, TXT LED 6000K Lo & Hi Beams, W16W LED Reverse Bulbs, 3BSpec 2.5w Map Lights, 5W Cree rear dome lights, 5W Cree cargo light, DTBL LED Taillights

If tuned:  Take note of the strategy code as you return to stock (including 3 bar MAP to 2 bar MAP) -> take car in & get it serviced -> check strategy code when you get car back -> have tuner update your tune if the strategy code has changed -> reload tune -> ENJOY!

polskifacet

#26
June 02, 2016, 08:22:40 AM
Did a wet test after dry test with a shot glass of trans fluid. Shot up to 175 psi.
AEM Dryflo drop in. PP Transmission Cooler and thermostat. 160 tstat, 3 bar map, plugs, AJP 93 Tune, PP Shocks and Springs

SHOdded

#27
June 02, 2016, 09:14:11 AM Last Edit: June 02, 2016, 09:16:43 AM by SHOdded
Time for some AutoRX?
http://www.auto-rx.com/seeing-a-difference-with-sticking-rings/

Or just try letting the cylinder soak in some carb cleaner overnight (with piston at TDC), siphon off the fluid, repeat as needed?
2007 Ford Edge SEL, Powerstop F/R Brake Kit, TXT LED 6000K Lo & Hi Beams, W16W LED Reverse Bulbs, 3BSpec 2.5w Map Lights, 5W Cree rear dome lights, 5W Cree cargo light, DTBL LED Taillights

If tuned:  Take note of the strategy code as you return to stock (including 3 bar MAP to 2 bar MAP) -> take car in & get it serviced -> check strategy code when you get car back -> have tuner update your tune if the strategy code has changed -> reload tune -> ENJOY!

polskifacet

#28
June 02, 2016, 12:23:39 PM
No it's dead. Back to stock and try to use my extended warranty.
AEM Dryflo drop in. PP Transmission Cooler and thermostat. 160 tstat, 3 bar map, plugs, AJP 93 Tune, PP Shocks and Springs

SHOdded

#29
June 02, 2016, 12:31:47 PM
ok, good luck!  Ford ESP or another company?
2007 Ford Edge SEL, Powerstop F/R Brake Kit, TXT LED 6000K Lo & Hi Beams, W16W LED Reverse Bulbs, 3BSpec 2.5w Map Lights, 5W Cree rear dome lights, 5W Cree cargo light, DTBL LED Taillights

If tuned:  Take note of the strategy code as you return to stock (including 3 bar MAP to 2 bar MAP) -> take car in & get it serviced -> check strategy code when you get car back -> have tuner update your tune if the strategy code has changed -> reload tune -> ENJOY!
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