Have you been able to find any Ford engineering/part numbers on the ECU harness? It might be that it is not an 89 harness?
1987 Mustang GT Mass Air Conversion Help
- Thread starter mustangmike6996
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Well, I have an update....
The engine harness was incorrect for his car. I located an 87 GT harness, added a Mass Air wiring extension, tied it to the PCM, got the harness laid in the car and the pump now works properly.
I have to get everything cleaned up and put back together but I can get the car to run and start (plus prime the pump). It's got a bit of a driveability issue that I'll tackle next. The vacuum lines are brittle and some are broken so I'll be fixing that and cleaning them up.
The engine harness was incorrect for his car. I located an 87 GT harness, added a Mass Air wiring extension, tied it to the PCM, got the harness laid in the car and the pump now works properly.
I have to get everything cleaned up and put back together but I can get the car to run and start (plus prime the pump). It's got a bit of a driveability issue that I'll tackle next. The vacuum lines are brittle and some are broken so I'll be fixing that and cleaning them up.
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