fuel pump relay wiring questions
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Joined: Jun 2003
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From: Desert
Car: 1991 Z28 Vert
Engine: 383 single plane efi
Transmission: T-56
Axle/Gears: 8.8 with 3.73s
fuel pump relay wiring questions
I am changing back from Mega Squirt to GM EFI, so I am in the midst of installing an old stock GM TPI harness form an '87 model year onto my 1992 RS. I have a question on the fuel pump wiring.
The harness is from a 87 MAF car and I repinned it for a 90+ MAP car. So I have to change the way the Fuel Pump wires are routed. For the 87, It had the fuel pump relay control(tan) and Fuel Pump Power (brown/white) coming from the C207 connector. The C207 is the clear two row eight column clip. What do those two wires actually do? Specifcally the tan colored one? Were they just a switched 12V or on with key?
My other question is what is the Fuel pump prime connector? What does that do? Is it only for ALDL diagnostics?
The harness is from a 87 MAF car and I repinned it for a 90+ MAP car. So I have to change the way the Fuel Pump wires are routed. For the 87, It had the fuel pump relay control(tan) and Fuel Pump Power (brown/white) coming from the C207 connector. The C207 is the clear two row eight column clip. What do those two wires actually do? Specifcally the tan colored one? Were they just a switched 12V or on with key?
My other question is what is the Fuel pump prime connector? What does that do? Is it only for ALDL diagnostics?
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92camaroJoe
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Aug 13, 2015 06:07 AM