Mechanics

P0301 CODE SHOWING

1998 Pontiac Grand Am • 168,000 miles

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.
Avatar
JimmyE
March 17, 2012.




Your question was cut off.

Check wiring to the #1 plug. Check compression. Make sure the plug is properly seated. Check for vacuum leaks.

Rivermikerat
Mar 17, 2012.


AD