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What about an ‘88 Ford Mustang with a 4-cylinder? It will crank but won’t fir. So far, the plugs, wires, cap rotor, fuel pump, filter, ignition control module, ECM — well just about everything — have been replaced.

What about an ‘88 Ford Mustang with a 4-cylinder? It will crank but won’t fir. So far, the plugs, wires, cap rotor, fuel pump, filter, ignition control module, ECM — well just about everything — have been replaced. There’s 42 pounds of pressure at the fuel rail, and timing marks line up fine. Car will run with a 91 ECM but not well.

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There was a common problem through those years with the ECM not being matched to the vehicle. Call the dealer and give them the VIN and then ask them to give you an original ECM part number. Then just about any aftermarket supplier can find the correct ECM for your vehicle.

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Gerald Wheelus
General Manager, Edgewood Parts
Edgewood, Texas

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