Electronics Need help wiring something up? Thinking of adding an electrical component to your car? Need help troubleshooting that wiring glitch?

Fuel pump relay wires?

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Old Jul 11, 2005 | 12:39 PM
  #1  
firebirdjosh's Avatar
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From: Worcester, MA
Car: 86 T/A
Engine: HSR 355
Transmission: 700R4
Axle/Gears: 2.77 posi
Fuel pump relay wires?

I want to try a kill switch but I don't know where the fuel pump relay wires run. Any tips where to find them under the dash? Thanks!
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Old Jul 11, 2005 | 07:20 PM
  #2  
Trickster's Avatar
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From: conway, s.c.
Car: 1989 Iroc-Z
Engine: 5.7L TPI
Transmission: 700R4
Re: Fuel pump relay wires?

Originally posted by firebirdjosh
I want to try a kill switch but I don't know where the fuel pump relay wires run. Any tips where to find them under the dash? Thanks!
Sure,

Pin "A" = a tan/white wire that goes to the fuel pump, the oil pressure switch, pin "E" of the MAF power relay, & pin "B2" of the ECM

Pin "B" = a black/white wire (ground) that goes to pin "A12" of the ECM and the back of the right cylinder head.

Pin "C" = a dark green wire that goes to pin "A1" of the ECM (fuel pump relay driver)

Pin "D" = a red/black wire that goes to terminal "G" of the ALDL (diagnostic connection) through connector C207.

Pin "E" = a orange wire that goes to pins "B1" & "C16" (power) and the 20 amp fuse by the battery.
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