Thread: Fuel Level Issue

All I can suggest is a bad earth somewhere, because both full an empty readings use only one thing in common, earth connection. If you can,t find it, try running a temporary lead back to a good earth location and see if that changes the Guage readings.

Can you record the voltage signal at full and empty? I'll try to compare my readings.

Suggesting the obvious but, could the float be restricted in its movement. Probably not. Bad contact top and bottom of the potentiometer? Unlikely I'd say, especially if new. But probably worth checking the arm on the float. I've a spare float/pump unit if you want to try it? Let me know.

Don't know what else it could be.

I've got a similar issue in that I don't get a maximum reading most of the time, but do get a fairly accurate lower half reading. I'm guessing sensor reader playing up, I've had the occasional fuel gauge fault come up on the on display with a ignition off & on again reset.

Must be the P38 way of life. Never ran out of fuel as yet!!

Found last easter if I stand there for 5minutes and dribble the last 10litres in it goes right up to full.

The gems ecu only uses the fuel guage to calculate km to empty, not the actuall fueling of the motor, so it won't be effecting economy.