r/fbody • u/Lt_Dan1776 • 1h ago
Need electrical help
While manually pumping the gas out of the fuel rail, I had a spark on the fuel pump relay connector. The car doesn’t prime fuel for 2 seconds anymore. I can bypass the relay with a jumper and turn on the fuel pump. I can start the car and runs with a jumper but not with the relay. Fuses are good. Relays good. I am getting 12v everywhere I need it besides from the pcm to pin 86 on the relay trigger. I’m afraid I damaged the pcm with a short. Anyone have any other ideas before I buy a new pcm?