MaxH

I've got a '93 4 cylinder mustang. Have a fuel issue. Started when going more than 55 mph the throttle would cut out and the engine dropped cylinders but would correct itself after a few seconds. This happened occationaly. Then it happened all the time and would drop all the way down to 1 cylinder until it died. It would start up after a few seconds and run fine a few more seconds later. Then it all started happening after going 45 mph. Now it does it going more than 35 mph and anytime there is a load put on the engine like going up hill. The fuel filter was changed as well as the fuel pump. The tank looked clean as well as the fuel coming out of the old filter.

89ponyboy

sounds to me like a firing issue i would check wires and plugs cap and rotor also the timing and maybe the coil, yours is fuel injected right?

mg man 75

Pull codes and see what they say. Probably ignition module. Remember test before replacing. If so use heat transfer paste [white in color]. NOT dielectric grease. Maurice