Where to get a Tach signal?

Discussion in '2005 - 2009 Specific Tech' started by 169stang, Jun 30, 2005.

  1. 169stang New Member

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    Does anyone know for fact where to get a tach signal for a shift light in the 05 Mustang. I've talked with MSD, AutoMeter and quite a few performance shops and no one knows.



    Thanks,

    David
    169stang, Jun 30, 2005
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  2. Power Surge Founding Member

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    You need to tap the negative side of one of the coil packs. If you are trying to hook up a standard type shift light, you need a tach adapter for the Ford COP.
    Power Surge, Jun 30, 2005
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  3. Rootus Officially Addicted

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    Find a wiring diagram for the EEC, there is most likely a tach wire coming into it. Saves you from having to run your own wire through the firewall.
    Rootus, Jun 30, 2005
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  4. Power Surge Founding Member

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    Rootus, there's no tach wire to the PCM. The tach signal is sent over the databus.
    Power Surge, Jun 30, 2005
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  5. Rootus Officially Addicted

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    Mmm. Cool :nice:. I was just guessing, wasn't sure how much they had changed since '03.

    Dave
    Rootus, Jun 30, 2005
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  6. 169stang New Member

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    Yea, already looked for the line going to the EEC. Found out just what he's saying. I have a AutoMeter tach adapter. I wonder if I need to get the Ford tach adapter? Have you wired one of these up? I've tried wiring to the coil pack. I could only get the light on at crank up, but not at the rpm's specified by the pill.
    169stang, Jun 30, 2005
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