Dodgy fuel guage

[Roydini]

I've always found my fuel gauge to be a little vague, but last week I filled the tank up and the gauge only went to about 3/4 on the scale? Now it is reading so low that it is a good few mm to the left of the empty position and yet the engine still turns over just fine. I've checked the fuses and the earth crowns were cleaned only a couple of months ago. Can anyone suggest something else that could be causing the strange readings?

Cheers folks!

[ajsimmo]

Is the temp gauge also reading low?
If so it's probably the voltage stabiliser putting out less than 10V.
If not, it sounds like a high resistance in the fuel gauge sender circuit. Could be corrosion on the plug on top of the tank, or (much more likely) a bad connection between the 14 pin plug on the back of the dash and the pcb.