MPG gauge doesn't work

[Dzdimi14]

So randomly my mpg gauge that sits under the tachometer stopped working. It is usually stuck at 40+ MPG but quickly moves to 0 the moment I pass 70mph. I was wondering if there was a way to fix this easily or should I just buy a new gauge.

[jlevie]

I'd be more inclined to suspect the SI board. Well, possibly the connection to the cluster or the DME. But I'd start with the SI board.

[Dzdimi14]

I'd be more inclined to suspect the SI board. Well, possibly the connection to the cluster or the DME. But I'd start with the SI board.

Do you think that its just a dead battery? or do you think that the whole thing will be shot.

[dnguyen1963]

Take it out and look at it. If there is corrosion from the dead batteries then your board is most likely shot and needs to be rebuilt.