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  1. #1
    FEP Super Member NAVYCAT's Avatar
    Join Date
    Jul 2004
    Montebello, CA

    Default Urgent harness question

    I have a 86 capri but the engine harness was hacked out, (its will have the stock 5.0/5 speed) but i just found a 5.0 5 speed in the junkyard but its a 88.
    can i use a 88 wire harness for the 86? will all the connectors match up? need to act fast before someone else gets it.....
    2017 Mustang ECO BOOST (DD)
    1969 Falcon XW GTHO coupe
    U.S. NAVY 1980-2009

    Past 4 eyes-
    4th. 1981 Capri "White" Black Magic I6
    3rd. 1984 Capri RS V8 Black/grey
    2nd. 1984 Capri RS V8 White/red
    1st. 1984 SVO Grey/grey (traded it for a worn out 1970 BOSS 302)
    Both '84 Capri's vin# were 10 away from each other

  2. #2
    Moderator wraithracing's Avatar
    Join Date
    Jun 2010
    Grand Junction, CO


    I know the dash harness of the 1986 SEFI harness in the Mustang/Capri is unique to that year model. I believe the engine harness is unique, but more similar to the Aero cars than the dash. You can probably make a different year model work, but some of the connectors may be different, but I am not 100% on that one. Hopefully someone has better information.

    "I Don't build it hoping for your approval! I built it because it meets mine!"

    "I've spent most of my money on Mustangs, racing, and women... the rest I just wasted."

    Mustangs Past: Too many to remember!
    Current Mustangs:
    1969 Mach 1
    1979 Pace Car now 5.0/5 speed
    1982 GT Awaiting Restoration
    1984 SVO Restoration in Progress
    1986 GT Wrecked by PO, but still want to save!

    Current Capris:
    1982 Capri Roller
    1984 Capri Returned to Bubble Back Glory
    1983-84 Gloy Racing Trans Am/IMSA Body Parts
    1982 Capri RS 5.0 4spd T-tops

  3. #3
    FEP Senior Member dagenham's Avatar
    Join Date
    Jul 2016
    Duncannon PA


    I can almost guarantee the harness will not be a direct bolt in. But if you are going to put all the 88 f.i. Stuff on the engine then youll need it.

  4. #4


    Get it! there is nothing that can't be done with an appropriate wire diagram. Stuff is getting harder to come by. I spiced a 94 harness into my 79. If concours show car isnt on your priority, it will be fine. Yes you may be short a plug here and there, but that too can be worked through. My .02, yours or others may vary

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