I've been looking for a solution to this and have yet to be able to find one that gives me a solid answer. Battery was disconnected yesterday for some work and after I was finished and turned the car on, the gas guage was way past the low point and was literally on the 'E', well below what the car would consider empty. Is this a dealer only fix or will an ECU reset take care of it?

Weird. Maybe start the car up and see what happens?

The car has been turned on/off 4 different times in the past 12 hours and it has not changed. No other effects have been seen thus far, but i do not know for sure.

Have you tried taking it for a quick trip around the neighborhood (assuming everything else is running correctly)? It seems the ecu needs some time to think about problems before it flags them. I know have to drive about a half mile after I fill up my tires with air before my tpms sensor turns off. Not sure if the gas tank sensor will operate in the same fashion.

Yes i've driven to work today which is about a 10 miles drive (mostly expressway) and its still stuck on the 'E'. I filled up yesterday and have driven a total of about 35 miles, 20 of which were after the guage messed up.

maybe a fuel level sender unit? Other than that I don't know what to tell you

Would disconnecting the battery cause that to go bad?

see if this helps you out


https://g35driver.com/forums/general...tank-full.html

It shouldn't, unless it wasn't fully disconnected.

Thanks artsVQ but that doesnt seem to be exactly my issue, the needle is way past the 'E' before I start my car, once started it moves as if it was working but its just off by a few inches. And X Factor, my battery cable was fully disconnected so the sensor shouldnt have been affected.

This thread might be more helpful. Maybe pm the op for some advice: https://g35driver.com/forums/g35-sed...as-needle.html

Thanks MikeDG, I don't actually see a pin for me to move the needle over. The needle starts out behind the 'E' and then when i start the car it moves up so that the top line in 'E' is covered, I'd load a picture but im at work and don't have the ability to load any pictures up. I may have to go to the stealership soon for a fix :-(