i would really love some advice on what i should do about my missfire it is back on cylinder 4 i have done the plugs, wires, coil pack, fuel pump and injectors , and the crank sensor and rectifier and the pcm and the iats and intake mani gasket and the tb gasket i am at a loss i have went over the ground wires and i have done a compression test and leak down boost leak and vacuum is good im starting to think its a bad wire or something in the harness if i just open the tb with my hand it holds idle just fine but if i use the gas pedal it gets a wierd stutter and i can unplug the number 4 injector and or the plug wire and it dont change anything but i put them back on it cleans up and it will idle fine and if i drive it it will stutter and eventually clean up and go the it will break up a lil and then do it again so it is almost like number 4 is just falling in and out and idk what else to do so if anyone could point me in the right direction or show me where i can find a wiring diagram so i can try to figure it out it woud be really awesome ! thanks in advance!