i didnt want to post on your wanted ad... but if you tested 3 other gauges & they all did the same thing, its highly unlikely all 3 gauges were bad. there is something else going on causing the issue whether its grounds or a bad printed circuit or the wiring etc. sorry i dont have an answer as its hard to diagnose things like this over the internet, but im guessing its not gauge related so buying a new gauge may be a waste of money. hope you figure it out!
|