Fuel system not working
03-18-2012, 06:04 PM
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Join Date: Dec 2011
Location: Barrie, On Canada
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Fuel system not working I changed my engine harness out of my 94 firebird v8 with a 95 harness. I tried firing it and noticed before i even cranked it over the fuel pump was not turning on when key turned forward.
I tested the wiring at the relay the pink hot tested fine, the black/white tested good for ground but the green had no reading. I traced it back through all the way to the computer to find that it also had no reading. I put 12v to the prime wire at the computer and heard the pump turn on, so i know it works.
I put the pump on a switch i heard it ran and had the right fuel pressure at the rails. But when i cranked it over the injectors are not spraying.
I cant help but think the fuel pump not turning on and the injectors are because of the same cause. Any suggestions on where to start looking would be appreciated.
I tested the wiring at the relay the pink hot tested fine, the black/white tested good for ground but the green had no reading. I traced it back through all the way to the computer to find that it also had no reading. I put 12v to the prime wire at the computer and heard the pump turn on, so i know it works.
I put the pump on a switch i heard it ran and had the right fuel pressure at the rails. But when i cranked it over the injectors are not spraying.
I cant help but think the fuel pump not turning on and the injectors are because of the same cause. Any suggestions on where to start looking would be appreciated.
