Fuel Pump won't engage
Fuel Pump won't engage
Hello everyone! New to ThirdGen.org; this is my first post, please forgive any errors. I beleive I have a wiring problem...
87 IROC, 305 TPI. Severe voltage drop to orange wire at fuel pump relay when ignition in run. Battery voltage good. 20 amp fuse by battery good. Voltage drop occurs with fuel pump relay, MAF relay and MAF power Relay unplugged. Can jump from positive battery terminal to Tan/White wire at fuel pump relay connector, pump engages. Any tips on tracing problem?
87 IROC, 305 TPI. Severe voltage drop to orange wire at fuel pump relay when ignition in run. Battery voltage good. 20 amp fuse by battery good. Voltage drop occurs with fuel pump relay, MAF relay and MAF power Relay unplugged. Can jump from positive battery terminal to Tan/White wire at fuel pump relay connector, pump engages. Any tips on tracing problem?
Joined: Apr 2005
Posts: 7,736
Likes: 14
From: Not in Kansas anymore
Car: 82 Z28
Engine: 383 SP EFI/ 4150 TB
Transmission: T400
Axle/Gears: QP 9" 3.73
Re: Fuel Pump won't engage
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92camaroJoe
Tech / General Engine
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Aug 13, 2015 06:07 AM






