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Help, fuel pump doesn't work after engine swap

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Old Apr 13, 2009 | 09:45 AM
  #1  
xwalt's Avatar
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From: Lower Burrell, PA
Help, fuel pump doesn't work after engine swap

Hi Guys, Sorry If I'm posting in the wrong place, but wasn't sure where to ask this question.

I did a v6 to v8 swap in an 85 camaro. The new v8 engine is using a carb and I used a donor harness from a 1986 tpi engine.

Everything appears to work fine, except the fuel pump. I have a new fuel pump and sending unit and a mallory fuel regulator.

When I turn on the ignition, I do not hear the pump in the tank. As far as I can tell, all the wires are connected properly, but I can't get the fuel pump to work.

There is also a tan/white and orange wire that according to gm's wiring diagram should go to a fuel pump switch. I can find anything to plug it into, so I don't know if i need another switch/sensor to plug into it. I have have a new oil pressure sensor installed as well.

Any ideas where I should check next? Any help would be greatly appreciated.

Thanks, Walt
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Old Apr 13, 2009 | 03:11 PM
  #2  
camarobird86's Avatar
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Joined: Jan 2009
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From: Walkertown NC
Car: 86 Camaro berlinetta sport coupe
Engine: 2.8 soon to be 4.3
Transmission: T5 soon to be 700R4
Axle/Gears: 3.42
Re: Help, fuel pump doesn't work after engine swap

try looking at the inner fender under the hood for two wires going into what looks like a sensor, theres a fuse in there, see if its good. thats the only thing i can think of. should be on the passenger side, under the hood.
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Old Apr 14, 2009 | 01:01 PM
  #3  
xwalt's Avatar
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From: Lower Burrell, PA
Re: Help, fuel pump doesn't work after engine swap

Thanks for your help, I know the fuse you're talking about as I've seen it on other harnesses I have, but I don't see it on this harness.

The one connector that confuses me is located near the distributor, it's a tan/white and orange wire that according to gm's wiring diagram should go to a fuel pump switch.

I'll trace the harness again and any ideas would be greatly appreciated.
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Old Apr 14, 2009 | 01:43 PM
  #4  
xwalt's Avatar
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From: Lower Burrell, PA
Re: Help, fuel pump doesn't work after engine swap

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Old Apr 14, 2009 | 01:43 PM
  #5  
xwalt's Avatar
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From: Lower Burrell, PA
Re: Help, fuel pump doesn't work after engine swap

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