2001 GP GT (not supercharged), #5 misfire per OBD-II, compression 104psi, new plugs, new wires, removed injector rail and injectors/cleaned and replaced using new o-rings, moved injectors to another cylinder and misfire still comes up #5, moved coil positions and missfire still came up #5, replaced fuel filter, fuel pressure checks okay, new pvc, new air filter, engine goes to 4500 rpm and hangs there unless backing off of throttle and then it will accelerate, on highway easily goes 85+ however if going 65-70 and attempt to accelerate by putting pedal down transmission shifts, as it should, to passing gear and engine will not go beyond 4500-5000rpm and stumbles and OBD-II indicates #5 misfire
What am I missing......also had transmission fluid and filter changed.
Can neutral rpm limiter device be suspect? Not sure of the circuit.
