Msifiring Problem ('01 GTI)

[Kaiser]

You certainly gave me some other ideas, but like I said we had a good idea already, specifically the coil-over-plug spark system. He had two new coils and two old, replaced both the old coils and the problem is gone. The ICM wasn't the culprit because it's well hidden now, and the MAF was solid, but at least with your response I know what to expect next time. All's good, thanks for the help and here's some reps while I'm at it.

[99hatch]

I was going to say coil pack. Another think you might want to consider is get a new diverter valve if you havent already. I got one and it made a big difference of the stock one. Not really alot HP wise, but keeps the boost building up longer. I think they are only about 170 bucks or something along that.