LT1 Based Engine Tech 1993-1997 LT1/LT4 Engine Related

Fuel system not working

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Old Mar 18, 2012 | 07:53 PM
  #1  
Bails098's Avatar
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From: Barrie Canada
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 run 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.
Old Mar 19, 2012 | 05:27 AM
  #2  
Injuneer's Avatar
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Re: Fuel system not working

You have two other threads started on this topic already. In the other threads, you indicate the harness is from a 96/97.

Get's confusing when there are multiple threads on the same topic.
Old Mar 19, 2012 | 08:57 AM
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Agreed, I thought it was a different post at first look myself.
Old Mar 19, 2012 | 09:54 AM
  #4  
Bails098's Avatar
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From: Barrie Canada
Re: Fuel system not working

Sorry i thought i deleted them.i will go back and double check they were removed. It is for sure a 95 harness. Sorry for the confusion.
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