I just cannot seem to get rid of this misfire, i have done plugs,wires,opti and new o2s and it helped a lot but its still misfiring. I am getting an incorrect purge flow code, a misfire in cylinder 2 (p0302} and a "sytem to lean in bank 2" P0174. Are these codes related or are they own seperate problems? And witch one is the culprit for the misfire? HELP i am so frustrated right now!! haha

 

check for vacuum leaks especially at the pcv valve hoses and all other vacuum lines its a major problem and will cause misfire. check for burnt wires and if you want change plug at cyl. 2

 

bump bump