What does this mean? I was driving along and my tach started to bounce around. It didn't misfire or anything but it just started to act up. Along with my MPG gauge. It was more bouncing then usual. Could this be a grounding problem. If so then what is wrong with it.

 

sounds like a ground problem to me.

 

mpg gauge goes by a vaccum line somewhere doesnt it?

 

What grounds should i check?

 

Wizkid, no vacuum connection, it's a little more sophisticated than that, it measures the injector pulse width and something else I don't recall right now.

Rob

 

My tach bounces as well. Been doing it since I bought the car in 2001. Haven't really worried about it too much -- as long as I'm not bouncing off the rev-limiter....

-Z.

 

Does anyone know what grounds I should be looking at?