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Bypassing fuel relays

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Old 04-04-2011, 04:16 PM
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Default Bypassing fuel relays

Thanks for helping me out, but I cannot find any info for bypassing the ASD and fuel relay on the truck. The stock system is a 3.9l from an 89. The engine is a 95 roller that is carbed. I can turn it over and get spark, but the fuel pump is not pushing any fuel. Ideas, pics?
 
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Old 04-04-2011, 04:50 PM
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Turn the relay upside down and find pins 30 and 87. Use a wire and jumper them the corresponding sockets that will provide direct power.
 
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Old 04-05-2011, 01:57 AM
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The ASD Auto Shut Down relay is for the computer controlled stuff like injectors coil ect. So you can just remove the relay since you don't need it.

As for the Fuel pump festerw said it good to test it. Just don't run it like that, use the relay.Also don't forget to check the fuses.
 
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Old 04-05-2011, 09:47 AM
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Coincidentally, I looked for a fuel pump fuse and could not find one. Perhaps it is not one of the spade types. I will push forward and recheck, but we are getting hiy with that front this morning in Florida, so it will have to wait. Thanks again.

EDIT: Here is how I have it wired: Drk Grn to drk grn (stock). Red from fuseable link. I have a blue with white stripe and a blue with yellow strip. One of them is a controlled neg. the other is a "run" from a switched source (which I have). I have ran the power typical and reversed with no fuel output. I do not have a fuel fuse that I know of (pre-box edition-lol) and I know that the relay works. While I do not know where the Drk grn comes from, I am pretty sure it is a switched (+) lead. Any other info is appreciated.
 

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Old 04-05-2011, 05:31 PM
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Here is what I found. I tried to get the pump to run in several ways to include bypassing the circuit and it still did not run, so either I have a broken connection in the harness or the pump itself is rendered inoperable. Will tilt the bed tomorrow and continue on.
 



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