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

Switch on intake fuel pump

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Old 05-19-2014, 04:10 PM
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Car: 87 Trans am, 67 Firebird, 78 Trans
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Switch on intake fuel pump

Does anyone know how I can put a simple switch on my in tank fuel pump. I want to wire in a switch to my fuel pump so I can turn it on and off for security reasons when I take my car to work.. What wire would I tap in to (color)... and I want to put the switch in my interior somewhere...
Old 05-29-2014, 05:30 PM
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Car: LOWERED ♦ CRIMSON METALFLAKE
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Tank Prank

Connect the switch in line with the gray wire located in front of the fuel tank.

You can also access the wire in the car at the left rear behind the seat.


Happy Racing !



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Old 05-30-2014, 02:47 PM
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Re: Switch on intake fuel pump

That's main power from the relay to pump. I would not put a switch inline

I'd tap into the 12v or grd leg of the pump relay instead. Find a pinout of your ECM, it's a dk grn/wht wire for 12v. Grd is the blk/wht wire off the relay
Old 05-30-2014, 09:14 PM
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Re: Switch on intake fuel pump

Originally Posted by Pocket
I'd tap into the 12v or grd leg of the pump relay instead.
Find a pinout of your ECM, it's a dk grn/wht wire for 12v. Grd is the blk/wht wire off the relay
Typical 3rd gen pump wiring


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