Fuel Pump Relay - Help!
Reply #9 –
@ Tom
Take another chance to read his entire post.
WHY???? He has a missing battery.
The pump runs when he crosses the relay battery terminals. Relay energizes from constant battery so i am assuming the KEY battery is missing. Once again a simple slave relay circuit.
R battery energizes the relay coil. He says when jumped the relay energizes. So that battery is missing. When jumped from Y the battery energizes the FP RELAY. BINGO either the enertia switch is NG or the wiring is NG. Did he check the battery in and out of the ENERTIA SWITCH. Using an OHM meter is not the right way to test the INERTIA SWITCH. It might ohm out but not pass the battery. JUST SAYING. A simple test light will fix this issue in 2 seconds as to where the issue is??