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no power to fuel pump

800 views 4 replies 4 participants last post by  34master 
#1 ·
I have a 1995 chevy lt1 in 34 master coupe. It was running fine than I stopped and fueled up, than started it. It ran for 30 seconds than died. The fuel pump is not coming on. I can run a wire directly to it and it comes on. the fuse is good. Could the computer have went bad?
 
#3 ·
There should be two circuits that power the pump. The computer runs the pump for about two seconds through a relay when you first crank the starter. This primes the injectors. Once the oil pressure in the engine comes up, a separate oil pressure switch closes and completes the fuel pump circuit independent of the computer. If the pump does not come on when you first crank the engine, check the relay.
 
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