| rough running I am having a problem that comes and goes, usually when i am doing some spirited driving. Car will be running great, then it feels and sounds like it is running on 3-4 cylinders and the check engine light comes on. After a few minutes it starts to run fine again. Car is a 99 M3 auto.
Any ideas?
__________________ Diana cold air intake, stage 2 software, cat back. ///M3 |