My girlfriend has an 03 Jetta 2.slow. She has been having some issues in damp weather where she would get pretty rough acceleration, the car threw misfire codes. As far as I remember, it always had one code for multiple random misfires and one code for misfires of cylinder 2.
Since it was about time for new plugs anyway, I replaced those along with the wires. I want to try to start with the cheaper things to rule those out first.
All has been good for a while, until she drove it yesterday (it was humid but not not really damp). Now she had a new issue: She said she was getting an extremely rough idle, but not the acceleration issue anymore. I pulled these codes:
Now I would think that if it is the ignition coil that is bad and causing this and the previous issues, that it would happen under acceleration also. What do you guys think?
Address 01: Engine Labels: 06A-906-032-AVH.lbl
Part No: 06A 906 032 MD
Component: 2.0l R4/2V G 4623
Shop #: WSC 00066
2 Faults Found:
16684 - Random/Multiple Cylinder Misfire Detected
P0300 - 35-10 - - - Intermittent
16686 - Cylinder 2: Misfire Detected
P0302 - 35-10 - - - Intermittent
Readiness: 0000 0000
I think I will swap out the coil either way, but I am just trying to see if there is something else going on also.
I guess I am just doing a sanity check and see if I'm on the right track. What do you think? Anyone had this before?