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Discussion Starter #1
I recently took my motor out of a 86 iroc 350 and wiring harness and put it in a 85 buick regal. one of the problems I am having is the fuel pump won't shut off when i turn the key. its only supposed to stay on for a few seconds. I think it has something to do with the wiring?? If anyone can help I would be very greatful.
 

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Could the fuel pump relay be stuck? Did you use the fuel pump from the Camaro? If you didn't, you should have. You can get the wiring diagrams from the chassis manual at the local Chevy dealer and check to see if you got the relay and pump wired right.

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'69 RS/SS396 pro street
427/4spd/9"
 

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Discussion Starter #3
<BLOCKQUOTE>quote:</font><HR>Originally posted by big gear head:
Could the fuel pump relay be stuck? Did you use the fuel pump from the Camaro? If you didn't, you should have. You can get the wiring diagrams from the chassis manual at the local Chevy dealer and check to see if you got the relay and pump wired right.

<HR></BLOCKQUOTE>I used an external fuel pump instead of the in the tank. but i also still have the fuel pump that came out of the camaro
 

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Did you wire it the same way it was in the Camaro? The fuel pump in the Camaro is set up on a timer, a relay and a oil pressure switch. When you turn the key on the pump runs for 2 or 3 seconds to build pressure so the engine will start, then once the engine is running the oil pressure switch sends power to the pump so it will continue running. The power always goes through the fuel pump relay to get to the pump. Check your wiring to see if this is the way you have it set up.

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'69 RS/SS396 pro street
427/4spd/9"
 
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