I got a question for you guys, can you test the fuel sending float without actually turning the car on? I just wanted to make sure the float was still working before I put the tank on so I "keyed on" the car and had my son hold the float up in the full position. When I keyed on my dash said my tank was empty even though he was holding the float all the way up. (yes i had the hat plugged into the harness). Thanks guys!