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Old Mar 30, 2012 | 06:41 AM
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Default Alternator trouble

I recently pulled out an alternator designed for a competition system and am trying to install and wire a new standard alternator. Due to a different wiring set up for the old special alternator, I have no idea which lead on the four lead pigtail is the output. I understand that it is a one lead alternator and the basic idea of how to wire it, I just don't know which lead I'm pulling from.
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Old Mar 31, 2012 | 07:52 PM
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So... what kind of car is this for. This was the last car a single wire alternator was used on:

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Old Apr 1, 2012 | 11:17 PM
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It for a 98' Trans Am. I never saw the original wiring and could only go off of what people have told me and what I saw from the alternator that I had in it.
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Old Apr 2, 2012 | 09:31 AM
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You should have one bid wire coming off the side post of the alternator and then one small exciter wire going in to the plug. Are you tryng to splice a new exciter terminal in? I don't recall the positioning, but you should have just one wire in that milti-terminal plug.
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Old Apr 6, 2012 | 08:05 AM
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Yes, I'm trying to splice a new one.
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Old Apr 7, 2012 | 08:43 AM
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so, the pigtail you got has four wires in it? (I thought they only came with 1.)
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Old Apr 8, 2012 | 09:05 PM
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I wish were that easy. Yes, it has four wires.
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Old Apr 8, 2012 | 09:41 PM
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There's a picture in this thread: https://ls1tech.com/forums/stereo-el...lternator.html

If you look in the lower left hand of the picture, you'll see the plug with the one red wire coming out of it:

If you copy the picture in to a graphics editor and decrease the contrast, you'll see that the one terminal is in the 2nd position from the top as you are looking at the plug here.
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Old Apr 14, 2012 | 10:49 AM
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That is exactly what I needed. Thank you VERY much.
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Old Apr 14, 2012 | 11:34 PM
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Did you get it working?
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