My temp gauge has been working in my Corsa. Today I installed the exhaust, heater hoses and fired it up. I ran it for 15-20 min, T-stat doors opened, temp gauge did not move.. Anything notoriously wrong with these? Thanks! Ron Tinkham http://www.ronsjeepjunk.4t.com/ Pine Tree Corvairs (in the works) 66 Corsa Convertible, 140, 4sp Maine