I recently installed AC Delco irdium spark plugs and now my car runs like crap? Doesnt accelerate at all. Any Answers?
That's odd. Are you getting a random misfire code? ACD/Denso is the best you can get IMO. Second best is NGK. What came out of your Ecotec? I try to stay exactly with what came out.
Joel
2007 Cobalt LS 4dr, 2.2L, Auto, bone stock deluxe poor man's package.
I put a set of NGK's in my 04 cav about a month ago and it seems to run pretty well....no complaints there!
What Is The Part # For Those Plugs
