My fuel sender seems to have stopped working. It's reading full no matter how much gas is in the tank. I don't think it's a loose wire, as when I had the KOSO gauge hooked up and hadn't connected the sender yet it read empty. Anyone else have this problem? Ideas?
PeteB, your sender is probably set at FULL when the tank is part full. If you can easily get to the SEND line from the sender, at the KOSO or elsewhere, why not fill the tank then do a calibrate as I described using a local Ground. Then put the SEND through a relay, which does not have to be right next to the sender like mine. Your EMPTY setting should still be valid. It should work for you.