Hi All!

I'm having some issues with the Temp and Gas Gauge on my 1968 Plymouth Valiant. Some time ago the Temp gauge quit, I didn't worry about it becauce I have a second Autometer gauge, and now the gas gauge has failed. Both gauges have failed to the low side.

I tested the wires to both sending units. With a test light and the key on the light blinks. I then grounded both wires and the gauges begin to climb. I changed the temp sending unit but nothing changed.

It appears the voltage at the sending unit is only about 2-3 volts. Is it possible for the IVR to fail this way or could I have a different issue?