2006 Pontiac Grand Prix
Car starts but it starts misfiring. Im getting the P0300 code - Random
misfire. Ive have the ICM swapped out, new plugs, wires, and ignition coils.
It was running good for awhile after I got it repaired, but now its back to the
same old misbehavior. I cant drive it because of the heavy misfiring. Anyone
else ever have this issue? What is a possible route to go to fix it again.. this
will be my last attempt at it.