My car has been back fireing for the pass 2-months, everytime i drive on uneven pavement or road it back-fire, switching gear, and even at idleing it back-fire. And i still can't find out what is going on with it :aigo:. So fare I check out the codes which it only gives me "42" but its been taken care off, replace new spark plug wire, spark plug, cap and rotor, tps-sensor, and recheck timing which timing it's fine. However i found out that two of my spark plug were crack when i was replacing them ? any clue what could cause this ? and as of right now i have now clue what is making the car to cause back-fire ? some help would be great ?:1zhelp::1zhelp::1zhelp:
