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

fuel pump wiring tpi to carb

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Old Jan 17, 2006 | 08:04 PM
  #1  
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From: maine
Car: 1986 iroc z
Engine: vortec 383
Transmission: th350
Axle/Gears: 3.73 moser 12 bolt true trac
fuel pump wiring tpi to carb

can someone please tell me where to tap into the wiring for the fuel pump? I figured you tpi guys would no best. I have removed and sold everything tpi related under the hood (unpluged not cut). so where do i find the fuel pump wiring to setup a switch of some sort? the relays went with the tpi. I will be running the mallory regulator and need this info and yes i have been searching...thank you very much guys....ryan
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Old Jan 18, 2006 | 12:23 PM
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You can install another relay in place of the one that went away with the TPI parts and harness, or use the oil pressure switch to power the pump. Using the oil pressure switch will be no different than a mechanical fuel pump with a carbed engine, since no fuel is delivered until the engine is cranked in either case. You'll want to fuse the supply to the oil pressure switch just like the factory TPI harness provided,
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Old Jan 18, 2006 | 11:15 PM
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From: maine
Car: 1986 iroc z
Engine: vortec 383
Transmission: th350
Axle/Gears: 3.73 moser 12 bolt true trac
I removed and sold the tpi harness so there is no wiring left. where do i dig for it to tap into the pump wires?
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Old Jan 19, 2006 | 12:15 AM
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There should be a tan wire from the tank/pump connector, through the interior under the rear seat, along the floor/threshold to the firewall, and through the firewall to the engine compartment.
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Old Jan 19, 2006 | 07:11 AM
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From: maine
Car: 1986 iroc z
Engine: vortec 383
Transmission: th350
Axle/Gears: 3.73 moser 12 bolt true trac
vader, could this be one of my pump wires? I know its not tan but thats all i got coming through the firewall....thanks

http://pg.photos.yahoo.com/ph/rtninj...nm=5303re2.jpg
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Old Jan 19, 2006 | 12:53 PM
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I'm not sure of the color rendition of my graphics viewer. Are those orange and green wires, or a red and green wires? Or blue? And tracers (stripes)?

I'm about certain those aren't the fuel pump circuit, either way.
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Old Jan 19, 2006 | 04:42 PM
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From: maine
Car: 1986 iroc z
Engine: vortec 383
Transmission: th350
Axle/Gears: 3.73 moser 12 bolt true trac
brownish color and the other is greenish color.
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