ISO ECM from 91 to 95 4.0L YJ or XJ manual trans.

  • As the subject says, looking for a computer from a YJ or XJ.


    Anyone have any spares laying around? I have one but it has some sort of security feature what won't allow the vehicle to stay running.

    Member since 2000

    Jeeps Owned'79 CJ5:

    Specs-

    - 258 I6

    - '93 Cherokee fuel injection and HO head,

    - bored 30 over

    - with 4x4 cam

    T18 tranny with granny low / Dana 18 t-case

    Dana 44 front and back from late '70s Wagoneer, both locked and loaded with 4.88 gears

    SOA on modified YJ springs with shackle reversa

    Fiberglass tub with 6 point cage mounted to the frame


    2015 Grand Cherokee Limited
    Spec-

    Quadratec Floor mats

    Edited once, last by Slimer ().

  • I got one for an XJ but it has the VSS on it. I thought all XJs had it


    Sent from my Pixel 2 XL using Tapatalk

    Member since 2000

    Jeeps Owned'79 CJ5:

    Specs-

    - 258 I6

    - '93 Cherokee fuel injection and HO head,

    - bored 30 over

    - with 4x4 cam

    T18 tranny with granny low / Dana 18 t-case

    Dana 44 front and back from late '70s Wagoneer, both locked and loaded with 4.88 gears

    SOA on modified YJ springs with shackle reversa

    Fiberglass tub with 6 point cage mounted to the frame


    2015 Grand Cherokee Limited
    Spec-

    Quadratec Floor mats

  • all of those years computers have a vss. It does not effect how the motor runs. It only effects outputs to the dash and trans which u dont need.

  • Why won't the spare one I have run the motor then? It starts but shuts down immediately


    Sent from my Pixel 2 XL using Tapatalk

    Member since 2000

    Jeeps Owned'79 CJ5:

    Specs-

    - 258 I6

    - '93 Cherokee fuel injection and HO head,

    - bored 30 over

    - with 4x4 cam

    T18 tranny with granny low / Dana 18 t-case

    Dana 44 front and back from late '70s Wagoneer, both locked and loaded with 4.88 gears

    SOA on modified YJ springs with shackle reversa

    Fiberglass tub with 6 point cage mounted to the frame


    2015 Grand Cherokee Limited
    Spec-

    Quadratec Floor mats

  • probably has the security feature that requires an rfi key. No way around that feature unless someone can program it out but not evrn sure that can be done.

  • I was at B&H auto salvage yesterday and a kid behind the counter told me he has a 95 YJ for sale. 4.0 5 speed for $500. I think he said it has around 130k on it. The frame is rotted out but the engine runs. I have his number if you're interested



    Sent from my iPhone using Tapatalk

  • I"ll keep that in mind but I really didn't want to buy another project vehicle to part out at this point.

    Member since 2000

    Jeeps Owned'79 CJ5:

    Specs-

    - 258 I6

    - '93 Cherokee fuel injection and HO head,

    - bored 30 over

    - with 4x4 cam

    T18 tranny with granny low / Dana 18 t-case

    Dana 44 front and back from late '70s Wagoneer, both locked and loaded with 4.88 gears

    SOA on modified YJ springs with shackle reversa

    Fiberglass tub with 6 point cage mounted to the frame


    2015 Grand Cherokee Limited
    Spec-

    Quadratec Floor mats

  • Nope the fi was all the same from 91-95. Pre 91 was the renix fi. Those computers r deffinately different even though they look the same.

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