randm misfire p0300
#1
randm misfire p0300
I have a 02 camaro with cam and heads etc. I changed coils, plugs,wires, and fuel filter. I also did a smoke test no vaccum leaks my random misfire will not go away i even reset the pcm still code comes back . The car at wot feel fine and pulls like an ape no lost of power noticed but idle and around 2000 rmp i can feel the misfire the car also have new o2 sensors which reads fine and was tune with a hp tuner. My next step is the valve springs i am just tired of spending money chasing my tail. Any ideas ? It also throws a code for high or low fuel pressure but pressure is at 60 psi which is normal for the 255 pump
#2
i have the same code. its all from my cam swap. are you sure its not just a choppy cam? mine drives fine, just the computer doesnt realize the cam is in there and thinks its misfiring.
also youll get more responses in the correct section
also youll get more responses in the correct section