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88 Mustang GT wiring...ugh

Discussion in 'Non-Turbo Tech questions' started by TDmkr496, May 28, 2013.

  1. TDmkr496

    Joined:
    Dec 11, 2009
    I'm building an 88 Mustang with and LS swap, does anyone have any experience with sorting through the factory harness to remove the original EFI BS wiring?? Any suggestions/ideas would be greatly appreciated!!
     
    TDmkr496, May 28, 2013
    #1

  2. TTF/Ken Staff Member

    Joined:
    Dec 31, 2011
    Locate the PCM behind the passenger side kick panel. The wiring harness attached to it controls the EFI, disconnect that and pull it out through the firewall. Once that's done you have the starting point for all the EFI related wiring, and ought be able to follow the harness wires where they split off from the sensors/controls they connect to.
     
    TTF/Ken, May 29, 2013
    #2

  3. TDmkr496

    Joined:
    Dec 11, 2009
    Thanks, I've already pulled the old ECM out and pulled the old harness through the firewall, its just sorting through all of it that scares me a little lol. I want to get rid of the cruise control and the Ford EFI bs. Its all in one harness lol.
     
    TDmkr496, May 29, 2013
    #3

  4. TTF/Ken Staff Member

    Joined:
    Dec 31, 2011
    TTF/Ken, May 29, 2013
    #4
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