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Voltage regulator help???

This is a discussion on Voltage regulator help??? within the General Help forums, part of the LSx Technical Help Section category; I recently replaced my alternator, when I removed it from the car, i realized that someone had removed the plug ...

  1. #1
    Junior Member hittman's Avatar
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    sport gold metallic
    1998 Z28

    Voltage regulator help???

    I recently replaced my alternator, when I removed it from the car, i realized that someone had removed the plug that plugs into the top of the alternator, there was one wire pushed on to the alternator (4 prong plug) now that its apart, i didn't get to see where the wire was plugged in at... The terminals are marked P,L,iF,S anyone know the proper terminal?

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    Junior Member hittman's Avatar
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    sport gold metallic
    1998 Z28

    Found it.... Red wire to "L" terminal..... Thanks..........

  3. #3
    Junior Member
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    Black
    2002 WS6 Trans Am

    What does this wire do? And what are the other three for? I know they are not connected to anything.

  4. #4
    Senior Member Redphoenix1998's Avatar
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    Red
    1998 Pontiac Trans Am

    The single wire is for the voltage regulator. It's the PCM wire to the alternator to control the amount of charging load the alternator outputs. Without it your alternator will not charge

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