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    ECM location questions

    These questions has probably been asked a million times. Where's the engine computer located in the car? What engine computers came in the Box Panthers from the factory ('86-'91)? Which computer is the best?


    '90 Mercury Grand Marquis GS
    Baseline 5.0L numbers totally stock, 123 rwhp, 239 rwtq
    5.4L swap coming soon.

    #2
    The computer is located in the car right above your brake pedal, if you look under the hook you will see the wiring harness in that area at the firewall. There is one bolt holding in the harness, take that out and the computer should slip out from inside the car.

    Here are the computer codes from fordfuelinjection.com, not sure if anyone is better than the other.
    8KD 5.0 Crown Vic SD-SFI / Auto
    8KH 5.0 Crown Vic SD-SFI / Auto
    MN 5.0 G. Marquis
    -Matt
    1968 Fairlane 500 - 1998 Camaro Z/28

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      #3
      Thanks for the info.


      '90 Mercury Grand Marquis GS
      Baseline 5.0L numbers totally stock, 123 rwhp, 239 rwtq
      5.4L swap coming soon.

      Comment

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