I retrofitted my 69 Camaro with factory console gauges about 10 years ago. The amp meter never moves more than the width of the needle in either direction but does respond as you’d expect when lights are cut on etc. After rechecking my wiring, everything appears correct.
Can someone tell me the resistance the gauge should measure across the black and black/white terminals? I don’t believe this gauge uses a ground, but please let me know if I am mistaken.
Neither terminal on my gauge shows a connection to ground and the resistance between them is 0.6 ohms. When running, I have about O.150v between the horn relay splice in the harness and junction block when drawing 15A from the battery (high beams, dome light etc.). At the gauge I only see 0.015V during these same conditions.
I don have a EE degree but it’s been 10 years since I cracked a book, so tell me if I’m being an idiot