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A/C wiring help

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  • #1

    A/C wiring help

    So I finished my carb to EFI swap and besides a leaky head gasket, she's doing great. Put nearly 6,000 miles on her so far.

    But I made a little boo-boo. I've now have the newer '91 main harness, and the older '88 A/C harness. The '88 has a three wire plug and the '91 has a four wire plug (that's just the size of the plug, the '88 actually only has 2 wires and the '91 has 3).

    My question to you Gurus (Guri?) is what is that extra wire for and is it possible to mate the two sets of wires and have it work the way it's supposed to.

    Thanks in advance for any replies.
    Joey Richard Jr.

    1991 Ford Festiva L; died but donated all her organs
    1988 Ford Festiva LX; EFI swapped in...actually everything swapped in


    Quality is Job 1. Together, We Can Save Lives. Ford.
    Tags: None
  • #2
    You should be able to blow these up for more detail.

    HTH

    Michael
    Have owned 9 so far
    White 89 L converted to LX "The Curmudgeon" Being a Curmudgeon right now.
    Blue 89 L converted to LX "Shtinky" FMS crate engine,cam,flywheel,hail dents
    Smurf Blue 90 LX "Smurffy" He Ran Away From Home!!!!!! Says Willie loves him more than I did!
    Red 88 L converted to LX "Rasta, Mon" Now retired
    Where did all these @#*&%$ Toyotas come from around here?

    Comment

    • #3
      Any way you can take a closer picture of the carb model system? I already have a wiring diagram for my '91, I'm just lost on where the 88s harness goes.

      Anyone else have any ideas? I'm sure I'm not the only person who has added in A/C
      Joey Richard Jr.

      1991 Ford Festiva L; died but donated all her organs
      1988 Ford Festiva LX; EFI swapped in...actually everything swapped in


      Quality is Job 1. Together, We Can Save Lives. Ford.

      Comment

      • #4
        My camera makes the pictures blurry any closer than that, but here goes....
        Have owned 9 so far
        White 89 L converted to LX "The Curmudgeon" Being a Curmudgeon right now.
        Blue 89 L converted to LX "Shtinky" FMS crate engine,cam,flywheel,hail dents
        Smurf Blue 90 LX "Smurffy" He Ran Away From Home!!!!!! Says Willie loves him more than I did!
        Red 88 L converted to LX "Rasta, Mon" Now retired
        Where did all these @#*&%$ Toyotas come from around here?

        Comment

        • #5
          JMO, but I would find a FI harness to use because of the differences. I think there are too many in my experience when you factor in the amplifier box that is not used on the FI harness located the evaporator box on the carb setup. Also, I would grab the cooling fan, and the section of high pressure line that is shaped different that runs along the passenger side of the engine compartment.

          Michael
          Have owned 9 so far
          White 89 L converted to LX "The Curmudgeon" Being a Curmudgeon right now.
          Blue 89 L converted to LX "Shtinky" FMS crate engine,cam,flywheel,hail dents
          Smurf Blue 90 LX "Smurffy" He Ran Away From Home!!!!!! Says Willie loves him more than I did!
          Red 88 L converted to LX "Rasta, Mon" Now retired
          Where did all these @#*&%$ Toyotas come from around here?

          Comment

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