[Roger V]

My gage didn't read at all. I grounded the wire to the sending unit and the gage went from empty to full. I bought a new sending unit and it functioned outside of the tank as it should on the gage. After installing the sending unit, the gage reads half full when the tank is actually full and empty when the tank is half full. Comparing the sending unit to the original it duplicates it in dimensions, travel, etc. A true mystery. While I know it's half full when reading empty, it's too far off for comfort. Any solutions?