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Cobalt Tach Install, Help!

This is a discussion on Cobalt Tach Install, Help! within the LT1 forums, part of the Vehicle Specific category; Hi, I recently purchased a Autometer Cobalt tach for my 95 z28. I was trying to figure out the best ...

  1. #1
    mgradle
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    Cobalt Tach Install, Help!

    Hi, I recently purchased a Autometer Cobalt tach for my 95 z28. I was trying to figure out the best 12 volt ignition supply to use for the red wire and where I should go with the green wire ignition? Any help is appreciated.

  2. #2
    Senior Member Zboner's Avatar
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    hold on i know this one

  3. #3
    mgradle
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    Also, looking at the illumination diagram would I have to splice into the grey or black wire to make the tach light up when the headlight are on?

  4. #4
    Senior Member Zboner's Avatar
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    ok how many wires are on it??

    red=power
    white=light
    black-ground
    green=ignition >>i think??

  5. #5
    mgradle
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    Right! The green is suppose to go to the coil and splice into the white wire, but I can't find the coil. It is suppose to be on the drivers side by the head. I think it is under my cold air intake?

  6. #6
    Senior Member Zboner's Avatar
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    i dont really know much about the ignition on the LT1 cars all i know is that opti is a bitch and a half man, sorry

  7. #7
    Junior Member Bang Camaro's Avatar
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    the opti isnt that bad, just in the wrong spot.... but yea the coil is right under the intake

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