Fuel gauge staying past full and sucking enough juice to make truck stall.

Sometimes yes the engine sputtered and at the end when they brought back the plane to the hangar the left engine refused to stop :P

So I will have to test the grey wire at the module for an incoming 5 volts and an outgoing 12 volts for the pump sensor. I will also plug the pump wire right onto the ground to see the needle moving. A wire made with a rheostat variable resistace so if its moving properly the the trouble is not the fuel level sensor inside the pump.