Best way to test gauges???

skykeith said

The gauges operate faster in the car, because the instrument voltage regulator puts out full battery voltage that's "chopped up" (or pulse width modulated) until it resembles about 5 volts. The voltage spikes, which the test battery doesn't have cause the gauges to respond a little faster.

Click to expand...

Couldn't have said it better

67Dart273 said

You really should just go ahead and post info right here in public. The rest of us just might learn something.

Click to expand...

Well, I really don't want to get into one of those dick measuring contests.

You and several others here are very knowledgeable, but the argument that follows is making everyone's eyes glaze over. OP wants a simple way to test gauges, I'm trying to help.