Jhoe
20+ Year Contributor
- 90
- 1
- Aug 18, 2002
-
St. Louis,
Missouri
My egt guage when I start the car, goes crazy, hovers around the right temperature but moves so quick back and forth around it (+/-20*to30*) so fast you can't focus on the needle. I have tried a different ground and a different power supply. Any guesses on why this won't read solid? It is the Autometer procomp ultralite. I can hit the brakes and then the guage may work for a bit...