Pontiac G6 Forum banner

Pontiac G6 2007 (57k) P0303 3rd Cylinder Misfire=HELP!

9004 Views 6 Replies 6 Participants Last post by  daddyloveslana
Hello! can anyone help me with this?
I have a 2007 Pontiac G6 with code P0303, third cylinder misfire..

Already did the following:
Swapped Plugs
Swapped coils
Cleaned Fuel Injector

*Engine is running fine! no problems running! cant seem to figure this out... The engine light, comes on and off inconsistently once it is reset. Days, weeks... not directly after the light has been reset...


Anyone have any ideas or help!?
1 - 1 of 7 Posts
Already did the following:
Swapped Plugs
Swapped coils
Cleaned Fuel Injector
I too would say check the wires.. Just because they might look good doesn't mean they are...theres different methods to testing them...or just replace them all...
1 - 1 of 7 Posts
Top