Started with a bad fuel relay board, so I ran the relay wires to the fuse with extended wiring. Then I burned up pump, change fuel pump, then lost spark. Put in new crank sensor, cam sensor, distributor cap, plugs and wires relays, fuses redid grounds. Changed ECM, inspected the wiring harness. I have lots of fuel pressure from pump to fuel rail. Also changed coil to new with diagnostic code po 1389 comes up. What is the fix to get this truck running? Help!
Wednesday, June 23rd, 2021 AT 7:08 PM