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I was setting in my vette and was letting it run and the gas gauge went to empty and then went back to normal. I got home and checked the codes and it said p0463. Anybody know what this means?
P0463 Fuel Level Sensor 1 Circuit High Voltage ECM. I got this code 1 time, hit the reset button and never had any problems. If you keep getting this code or problems with the fuel gauge, I would have it looked at.
Last edited by David426; Jul 10, 2005 at 10:42 AM.
C5's have a common issue with the fuel sending units. The wire wound resistor in the unit gets dirty. Your best bet is to try the simple fix. Run some fuel system cleaner through the tank. Try Chevron Techron or Red Line.