Hi all my Mpg needle on my clocks has stopped working. Initially it didn't bother me but now it's annoying the shit out of me. Now I know there is a speed sensor in the differential that might give up but shouldn't that stop the speedo also? The speedo is working fine shows correct speed no bother. I tried a different dial on it today (changed just this from clock inners) same thing. Tried a different set of clocks but every bulb on them was blown but didn't appear to work either. Although I'll give this a go again with the bulbs changed. Should the mpg work on these they're from a 6pot and mine is a 4pot?

When I move it stays in this position only.

When I stop flicks back the other side and dissappears but gives no readings in between no mpg reading.

Mpg on the obc is not working. Mpg needle was not working before obc was installed.

Any ideas? I'm starting to obsess lol.