Gasoline instrument!
 

Hello everybody!

I have a small problem with my instrument table in my Hyundai Lantra 1.8GLS.
When I turn off a car, so when no electricity is supply to the instrument
table, I recently discovered, that the gasoline needle won't go down. So, if
I am clear: all needles (speedo- and RPM, temperature) are positioned to the
minimum (to number 0), except the needle for gasoline information shows the
ammount of gas. It means, if the car has been fully filled up with gas, the
needle shows maximum all over again also when the car is not working (and the
key is pulled out).

What should be the problem?

Thanks for all answers,
Regards, Bojan.