Wow! heck of thread. I need you to stop by and figure out why my Generator gauge on my Ralley setup doesn't work once you get this figured out.

I had a 85 Caprice where the gen light would lightly glow. I replaced the alternator twice then just lived with it for a couple years. Ended up being a bad diod in the alternator. Must have been a bad batch of them.

I would sure like to see a simplified drawing of how the gen light works. It would make the trouble shooting alot simpler.