Hey guys I need your help, I have a 96 4.0 ohv and I keep getting no.1 missfire at the worst times, wires are new and I just put a new set of plugs.. what I don't understand is how it will come and go. The only three culprits I can think of are the coil pack, MAF or a failing injector. I don't know much when it comes to these 4.0s and this truck is my only way to work.