Help please!!!!!!!!! I’ve tried everything and more!!!!!

Ok so I bought an 87 from a kid who had inherited it from his grand father. It has the original 88k on the motor and she purrrrssss like a kitten. This truck is clean from tip to toe....except the damn check engine light. I’ve taken it to a shop and they pulled a code 95-(secondary fuel pump circuit fault). He told me it’s a faulty ground somewhere and it would be cheaper for me to find it myself. I’ve spent the better part of a month looking and cleaning and testing wires and connections. The fuel pump itself(inline aka the “secondary”) is clean an all connections are sound. The 2 other fuel sending units(in tank) are brand new and work in perfect order. Please if anyone has anything even close to this, please post! I’m taking all suggestions up to and including an exorcism!



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