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  1. #1

    Join Date
    Feb 2007
    Location
    N. DE/OCMD
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    12

    Hot Tach III - hook up ?

    Have one without the instructions.... anyone know what the blue wire goes to? I'm thinking ground/switch but want to make sure....

    Unit has:
    Yellow - Tach (goes to plug wire)
    Red - Positive
    Black - Ground
    Blue - Switch (ground or positive though?)


  2. #2
    cbrich's Avatar
    Join Date
    Nov 2006
    Location
    Around Lake Travis
    Posts
    1,374
    +1
    1
    Here is the manual for the Hot Tach III

    http://www.racepak.com/downloads/pdf/ht23manual.pdf

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