My fuel gauge will cycle when the SSR is started then go to correct fuel level, then with in a minute the gauge drops to empty, low fuel comes on, and "range to empty" goes to ---. The check engine light comes on and I checked it with a code reader. The code is PO463 which says: Fuel level sensor A circuit high input or open. The within a few minutes it goes back to reading the correct fuel level, fuel level low light goes off and the "range to empty" reads correctly. This continues back and forth as I am driving the SSR, or just sitting in the driveway. I am thinking it is the fuel sending unit, but know there are gauge cluster problems with the stepper motors. If it is the stepper motor, then I would think that the "range to empty" would read correctly. Any help to figure this problem out would be appreciated.