Hi to all, this is a '09 Passat with a 2.0 TSI
I've been solving codes one at time and now I have a misfire and multiple misfires code, however, the car runs, accelerates and feels really good.
I did a live check with the VCDS while a friend was driving and I notice that when we stop at red light or stop sign the misfire counts for both cylinder 1 and 3 will start going up (over 200) and will stop once we accelerate. I did same live test after doing the following:
Swapped the coils, swapped the spark plugs, adjust and cleaned the spark plugs.
Problem stays the same in cylinder 1 and 3.
A month ago I cleaned the carbon buildup, 2 months ago I installed a new Intake manifold, I checked for vacuum leaks with a tester and came back normal.
What will be the next thing to check?
Thanks for the input!!