I have had the EGT gauge on my car for a couple years and just recently it stopped working. It is still getting power because it is still lighting up and moving when the car turns on, but the gauge now just sits at the bottom and does read any temperature. Anyone know what the problem is?

 

Needs a new thermocouple or its the gauge itself..../thread

 

Yes, you need to purchase a new thermo coupling. Hell, just buy a whole new gauge, who cares they are only like $150...