fuel pump voltage
fuel pump voltage
My car wouldn’t start today. I immediately looked at my fuel pressure gauge, which was at zero. I parked it last night and it was running fine. I can hear my fuel pump run when I turn the key. I plugged in my scanner and I am getting zero volts when I turn the key on. When I crank I get around 12 or so volts on the scanner. I checked the fuse at under the hood and it is fine. I also unplugged the fuel pump and sender under the trunk and am only getting 6.2 volts. I know that is low, but should it turn the pump? Why would I get 12 volts on the auto xray and only 6 at the tank? Any help?
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From: Hollywood, FL
Car: '88 Black GTA, T-tops, digital dash
Engine: 5.7 TPI w/custom chip
Transmission: 700R4
Axle/Gears: 9 bolt 327 posi
Try running a different wire just to test if it makes a difference and if it does then you'll know that your original line may be bad. But, did I understand right about the fact that the fuel pump primes when you turn your ignition on? If it does I would imagine it should run, but don't quote me on that! I hope it helps.
I am having the same problem I dont hear my pump though i am getting 12 volts at the relay but when i trace it back i get like 6 volts by the connector back by the rearend
What is causing this???
What is causing this???
I ended up just running a new wire to my pump. The contacts didn't look bad at all, but I think the wire is probably shot somewhere along its path. It works fine now with a new wire.
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