when my car boosts up past 1bar(15psi) at WOT i feel and hear a real light studder a couple times when taking it thru the rest of rpm range. at first i thought it was just some bad gas but it still does it and my check engine light just came on.

only thing ive come up with is some detonation but my tuning seems to be in order and my EGTs are well in range. Im going to pull the plugs tomorrow and check its related parts also


I figured i would ask here for any pointers or suggestions on what the problem is


thanks,
kevin

 

I'm with you; detonation.

Oh also, I think you might have better luck in the tuning section with this question.

 

oh i figured i would post it here since most people ask questions in this thread


thanks for the advice