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Thread: Wiring Harness for 1999 to 2001 Mustang GT

  1. #1
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    Wiring Harness for 1999 to 2001 Mustang GT

    I am converting my Roadster (back) to fuel injection. I did not receive all of the wiring harnesses when I purchased my 2001 Mustang 4.6 engine and transmission. I have the engine wiring harness but not the portion of the harness that contains the ECU connector and the OBD2 connector. Are these connectors part of the dash harness? Anyone have any pics of the harness that contains these two connectors?

    Thanks.

    Wade

  2. #2
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    Anyone?

  3. #3
    Senior Member AC Bill's Avatar
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    You should check with Chuck Fields, known as Mustang Medic on the other forum, (FFCars.com).

    He has an in depth knowledge of wire harness's, and may even have what your looking for on hand.

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  5. #4

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    Agreed. Chuck has been a great help to me.
    CraigF

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  7. #5
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    Thanks guys. I will give him a call.

  8. #6
    Senior Member Norm B's Avatar
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    Here’s a picture of one on eBay. Gives you an idea of what you’re looking for. You’re still way better off getting it from the source recommended by AC Bill. Far too many little wires and connector pins to trust a 18 year old part, with a unknown background, off of eBay.

    Good Luck

    Norm
    Attached Images Attached Images

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  10. #7
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    Here’s a 98 4.6 DOHC dieted by Art Cuesta. Minimal wiring and worked perfectly from first start.

    8AF2CAD0-D099-4544-BDED-8AFF70AD8FA0.jpeg
    MKIV #8740, Canadian base kit, Picked up Dec. 2015, ‘98 Cobra 4.6 l DOHC, T45 transmission, old style IRS, Art Cuesta dieted harness/Ron Francis chassis harness, go-cart July 2018.

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  12. #8
    Member Joel Hauser's Avatar
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    I don't have a picture - sorry - but I built my roadster using a 1996 mustang GT donor. I was able to buy a replacement upper 02 sensor harness from Ron Francis Wiring after I realized too late that I had thrown the original away. It was a perfect fit. I think it cost under $100.

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