Electronics Need help wiring something up? Thinking of adding an electrical component to your car? Need help troubleshooting that wiring glitch?

Si alternator wiring

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Old 03-20-2017, 08:22 PM
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Car: 1986 Camaro
Engine: Stock 350
Transmission: 700r4
Si alternator wiring

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.
Old 03-20-2017, 09:49 PM
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Car: 84 TA orig. 305 LG4 "H" E4ME
Engine: 334 SBC - stroked 305 M4ME Q-Jet
Transmission: upgraded 700R4 3200 stall
Axle/Gears: 10bolt 4.10 Posi w Lakewood TA Bars
Re: Si alternator wiring

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.
Old 03-21-2017, 06:13 AM
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Car: 1986 Camaro
Engine: Stock 350
Transmission: 700r4
Re: Si alternator wiring

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.




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