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Thread: Aftermarket tach/yello wire question

  1. #1
    Join Date
    Oct 2018
    Posts
    3

    Default Aftermarket tach/yello wire question

    Hey guys! So the yellow wire coming out of the 3-way connector is a tach output wire, correct? will it operate any cheapo local parts store tach? I had my tach hooked op to the gray wire out of my 6al, but now the gray wire is going to the white wire for the atomic. i just dont want to screw something up, thank you!

  2. #2
    Join Date
    Apr 2013
    Posts
    4

    Default

    I think you can do that now that you said that. I didn’t read instructions that far 🙄 What I did, whether it’s ‘correct or the right thing to do’, is I connect my original gauge (the one that was connected to it originally) in to the same connection, so grey, white and tach altogether. Works fine for me and reads same at EFI hand held. My car Holden HQ Ute if it makes a difference. The tach was altered to suit a square wave input.

  3. #3
    Join Date
    Oct 2018
    Posts
    3

    Default

    I thought about doing what you did, but I tried the yellow wire and it works great too!
    Now on to tuning! thanks!

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