I have a 1998 Pontiac Grand Am GT 3.1 v-6 that is showing a PO301 reading that says a misfire in cylinder # 1.I have replaced wires, plugs, coils, ignition control module and even the fuel pressure regulator.I had a pressure checked done on the cylinders. After it runs for awhile you can hear the misfire. But when I push down on the pedal it sounds even.
have the same problem?
Saturday, March 17th, 2012 AT 5:03 AM