Bad miss

[JROCK1987]

Getting bad miss on my 04gtp at idle. Changed coils and plugs. Didnt helP.can I get some advice

[Austins01GP]

id check the wires to start

[dsmuts]

Yeah check your plug wires and clean your maf and tb while your under there lol

[rocknnachos]

Step one is to determine which cylinder(s) have a miss. You could unplug each fuel injector, one atta time or pull one spark plug wire, one atta time, while the engine is idling. If you pull one (either injector plug or spark plug wire) and the idle gets worse, that's not a miss. If you pull one and it makes no difference in the way the engine runs, that's a miss. Pull them all, one atta time. Be carefull if you pull plug wires as it will light you up if your hand and tool arent insulated.

Or... you could throw a new set of plug wires on it and see if that fixes it

[Austins01GP]

just to clearify.. the car was missing before plugs and coils were done right?