Chevrolet Repair Questions? Ask a Mechanic for Answers ASAP
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what is your battery showing ?
let me look up the circuit of the fuel pump , we should have a fuel pump relay giving power to it and a ground from pcm
what are you getting on the other side of the connector ,you got 8 v on one does the other have a ground when you attempt to start it
like put ur test light on connector and probe for ground and one person try to start it and hold the key in the start position , are you getting ground at that moment on the fuel pump connector
you can check for ground by hooking up the test light lead to teh positive side of battery so now anything you touch if the test l;ight lights up you found gropund
please let me know