I Changed my coils out Replaced Spark plugs with bosh and put in new igntion coil housing 2.4 L Twin Can 2001 Grand Am and it still is mis firing or running to lean or somthing it is rough ideling and isnt runnig correct any sugestion I plug in my code reader and its just says P0300 Engine mis fire what going on
36.2k questions
32.2k answers
1.3k comments
22.8k users