My truck listed above has dual tanks. Fuel pumps not running and used a test light to check for power. I had a very dim light and fuel tank connections. Checked inertia switch and tank selector and had no power, fuel relay was not pulling in but had power on terminal 30. I can jumper pin 6 at test port and pumps will run.
I am not sure what tells the ECM to close and ground the other side of the fuel relay.
Thursday, September 10th, 2020 AT 10:51 AM