maf conversion help
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maf conversion help
I have a 1992 f150 5.0 i am doing the maf conversion to. I am putting in the a9p computer out of a '90 mustang. According to the wiring diagram in the haynes manual for the truck, pin 8 on the computer goes to the fuel pump relay and fuel inertia shut off. In the mustang wiring diagram it doesnt show a pin 8 or a fuel inertia shut off. What do i do with this pin?
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Pin 8 is the fuel pump monitor, which the computer uses to determine if the fuel pump relay is working. If it is not connected, you will get a constant fuel pump secondary circuit failure code, but the engine should still run. The A9P should also have this FPM pin, from the one place I looked online, it looks like pin 19, so you can just move the wire in the connector. The relay is activated with pin 22 on both computers.
