I tried looking through the archives and can't find a solution to this problem. I bought my car a while back and the wiring is all messed up. The latest problem is my alternator was charging but voltage was all over the place. From pegged out high to 9 or so. It was wired with only the battery wire hooked up and a jumper to #2 terminal. I tried hooking it up right after I found the wires but it's still not charging. Now the choke light is on which I read is the same as the batt light on other cars. On the alternator wires I have 6.5 volts on the brown wire and nothing on the red. I can't find a good wiring diagram for my car. It's a 86 Camaro with the lg4 I think.

 

It could actually be wired correctly, but just failed.
1 wire alternators are wired this way.

Before getting into your car's wiring, take the alternator
to your local parts store, where they will test it for free.

 

I'll try that before this weekend. It needs to be tested anyway after that. I was just wanting to undo some of the quick fixes the previous owner did.