Originally Posted by D25mn
Ok guys recently got downpipes, intercooler, but didn't get around to doing the DCIs. Running Stage 2+FMIC ST Sport on 93 octane as I don't have the intake.
Drove about 303 miles this week, and had no problems. After starting up the car to go home from the office got SES, pulled over and check the codes and got the following:
The miss-fire on cylinder #3, The car has 25,000 miles but the car was just tuned about 2000 miles ago.
Is the misfire causing the other 3 codes to show?
My guess is spark plugs. Are you still on original plugs? You should be replacing them every 20k miles at most with a tune. I just did mine. Then found out my coil packs were going bad too.