In the beginning the fuel gauge would jump from a 3/4 full tank down to 1/4 tank back to 1/2 tank and so forth.
All I did was take the molex connector apart and clean it. I checked the connection to make sure it was solid and not loose. I also held it to ground and watched the fuel gage respond. After I re-connected it and gauge worked ok. I drove about 2 miles and it died again.
Potential causes of a P0463 code include:
-The signal circuit to the fuel sender is open or shorted to B+ (Battery voltage)
-The ground circuit is open, or ground path may have high resistance due to rust or missing ground strap on fuel tank
-There's an open in the fuel lever sensor's resistor to ground
I haven't had a chance to look at it yet, but probably will this week and wanted to know where to look for the tank ground as it seems the easiest thing to check first.
Sunday, July 15th, 2012 AT 5:28 PM