We're having an issue with a console temperature gauge... the gauge is not working when the ignition is on or when the engine is running.
But when the ignition is off and the headlights are turned on... the temperature gauge pins to the H side of the gauge.
Any advice to what is the issue? possible bad ground?
My ride... 1969 Camaro SS X11, 350 zz4 crate engine, 4-speed M-21 Muncie, 12 bolt posi w/multileaf, ps, pdb.