Fuel pump relay location

BAMABBOY92002

MEMBER
1990 CHEVROLET CAPRICE

Someone help! I have changed the fuel pump the fuse in my 90 caprice it is fuel injected with a two barrel and the pump still will not come on I bypass the relay and it works but the injectors will not keep it running I changed the relay, pump and fuse and that wasn't it either and I missing?

4 Replies

DOCFIXIT

MECHANIC
18,828 POSTS

Check for spark if none then injectors will not spray. Here is a guide to help test the fuel pump relay with the location in the diagrams below.

https://www.2carpros.com/articles/how-to-check-an-electrical-relay-and-wiring-control-circuit

Check out the diagrams (Below). Please let us know if you need anything else to get the problem fixed.

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Thursday, January 14th, 2010 AT 9:23 AM

DAVIDMOBLEY

MEMBER
3 POSTS
1989 CHEVROLET CAPRICE
V8
2WD
MANUAL

How can I hard wire a fuel pump? I tried wiring it to hot wire was getting gas to carb but it would not come out of injectors. If I jumped the relay would it work? Any help would be appreciated.

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Sunday, September 1st, 2019 AT 12:32 PM (Merged)

RASMATAZ

MECHANIC
75,992 POSTS

Stay in your original post -your problem here could be power to injectors/there's no input signal from a sensor telling the computer to snchronize the injector/s or the computer itself

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Sunday, September 1st, 2019 AT 12:32 PM (Merged)

DAVIDMOBLEY

MEMBER
3 POSTS

Well your right. I have tried everything. I dont know what to check to make sure the injectors are gettn power. Like I said I wired the pump directly to hot to see if it would work it did but no gas out of injectors. What do you suggest I do now to resolve this? I want to do it the right way.

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Sunday, September 1st, 2019 AT 12:32 PM (Merged)