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    Author Topic: Wiring Up Add-on Tach  (Read 560 times)

    Offline cv70chall

    • Jr. Member
    • **
    • Posts: 301
    • 1970 Challenger
    Wiring Up Add-on Tach
    « on: October 01, 2012 - 01:27:52 PM »
    I'm installing a tach above the steering column and can't figure out the wiring.
    I have the following:
    RED
    BLACK
    GREEN
    YELLOW
    I can imagine red/ black are 12v and ground but the others?

    Thanks
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    Offline MEK-Dangerfield

    • C-C.com Expert
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    • Posts: 20946
    • I don't get NO respect! Member since 1/25/2002
    Re: Wiring Up Add-on Tach
    « Reply #1 on: October 01, 2012 - 04:00:51 PM »
    I have a VDO tach here. The green is the signal wire that would attach to the "-" side of the ignition coil.

    I have a white wire that's for the light inside the tach.

    Maybe your yellow wire is for the light?    :dunno:
    Logged

    Mike

    1970 Challenger - SOLD
    2016 SXT+.  1 of 524 SXT+'s in Plumb-crazy for 2016.

    Offline cv70chall

    • Jr. Member
    • **
    • Posts: 301
    • 1970 Challenger
    Re: Wiring Up Add-on Tach
    « Reply #2 on: October 01, 2012 - 04:28:09 PM »
    Gotcha!
    Actually, it is a WHITE wire and not yellow.
    So I've got Red, black, green and white.

    Thanks!!
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