Finishing up odds and ends on dads 69 Dart. One of those is to get the temp and fuel gauges working. I went through all of the engine wiring, so I know the wiring for the temp gauge is good and hooked up. Let’s start there.
I have the regulator in hand. I am testing it with a 12V power supply. And I am monitoring it with a multimeter. It doesn’t hold a constant 5V. In fact, it never makes it to 5V. It oscillates between 0 and 4V. I expected a steady 5V from a working unit.
I am getting a solid state unit, but I wanted to test this old unit as part of my trouble shooting. I have a video of what the meter reads. Given the IVR is supposed to switch 0V to 12V back and forth, I think it’s bad, but I still need to ask. All I need to know is if the IVR readings show a good unit or a bad one.
