Hi guys,
this is my first time posting on this forum, but I have learned a lot by reading various threads. I have a 1998 GTP that I did a head gasket job on about ~8 months ago. It was running perfectly fine until about a month ago, I was driving and hit a pot hole on the street, after that it started misfiring. I checked the exhaust manifold, and it was cracked, so I changed it. The problem is still there though. (P0300)
Problem:
I checked for spark, and the coil(first one on bottom) is not firing at all. I tried replacing the coil, but nothing. Could it be the ICM, if bad, none of the coils would fire, right? The car has been sitting for a month now!
