Quote:
Originally Posted by Bahraini86
Been getting CEL upon reaching 7800-8000RPM on Stg 2 pump gas map. The code is P0351. I understand that this code is related to coils. However, I tried to identify the faulty coil via logging misfire on cylinders. There was no misfire shown on any!
I thought of taking the car to the dealer to inspect the issue, but I couldn't reproduce the code on stock tune even after driving her hard for half a tank. Everything was smooth and fine.
My next 2 steps in this pursuit are gonna be:
1- Use a higher octane gas (VP MS019) on stage 2 tune to determine if this is related to our crappy 91oct PG
2- Switch back to Stg 1 tune and use pump gas and rev her past 8000rpm and know if it's a tune or a mechanical related issue
My tuner suggested that it's most probably a mechanical issue. But I want to make sure of that before deciding to remove coils or inspect injector seals.
The car is running just fine with a bit of rough idle on STG 2 map, stock tune and stg 1 are both idling very smooth.
I appreciate any feedback and any suggestions 
p.s. This is not another tuner-war thread, just a guy with some issues  |
The last digit of misfire codes identifies the cylinder. In your case, it's coil #1, the passenger side front coil.
The code itself is an electrical fault, most commonly caused by a coil starting to fail. If you had failiing injector seals, you would hear a loud popping, and I believe would be more likely to set a P030x code rather than a P035x code.
Easy way to check is to swap coils #1 and #3, and if the code goes away or moves to #3, it's a faulty coil.