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92 chevy corsica relay switch location to fix lack of fuel to the engine


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rawqstorm
Novice

Jul 27, 2008, 12:04 PM

Post #1 of 2 (3904 views)
92 chevy corsica relay switch location to fix lack of fuel to the engine Sign In

I found where the relay switches are on my 92 chevy corsica. On the passenger side in front of the strut tower. There are 4 of them. three laying on the bottom of a bracket and one on top. I need to know which of these is the fuel pump relay so I can change it out without having to change out the entire set of relays. My fuel pump may be burned out but i want to work on the relays before I dig in and drop the fuel tank >< .


DanD
Veteran / Moderator
DanD profile image

Jul 28, 2008, 4:56 AM

Post #2 of 2 (3895 views)
Re: 92 chevy corsica relay switch location to fix lack of fuel to the engine Sign In

The pump relay will have five wires to it; I think if I tell you what they are and what they do, you should be able to find it & test it.
- Dark green; ECM (computer) control, the ECM turns relay on and off by applying power to the relay’s pull-in coil.
- Black/white; ground for the relay pull-in coil, bolted to the left lower front of engine
- Orange; battery power feed, 20 amp in-line fuse, coming from battery junction box
- Gray; fuel pump power feed; Power from orange wire is connected to gray when relay is energized
- Red; fuel pump prime/test, if power is applied to this wire (with jumper wire) and everything is “normal” the fuel pump should run.

Dan.

Canadian "EH"






(This post was edited by DanD on Jul 28, 2008, 4:58 AM)






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