Patent ID: 7299675

Claim:
A method of calibrating a fuel level sensor installed in an empty fuel tank and including a float received between a top and bottom of the empty fuel tank, comprising the steps of: installing in an empty fuel tank a fuel level sensor producing an electric signal response to the position of a float of the sensor in the fuel tank; while the tank is empty allowing the float to rest against a first float stop within the empty fuel tank in the tank; while the tank is empty storing the electric signal of the installed sensor with the float position at the first stop while the tank is empty as indicative of at least one of a minimum or maximum liquid fuel level in the tank; while the tank is empty moving the float of the installed sensor in the empty fuel tank against a second stop substantially spaced from and generally opposite the first stop; and while the tank is empty storing the electric signal of the installed sensor with the float position at the second float stop while the tank is empty as indicative of the other of the minimum or maximum liquid fuel level in the tank.