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  1. Z

    1990 4.0 cherokee how do i change from fuel injection to carb

    What parts do i need to change from fuel injection to carb?i am fed up with this ecu crap, now it starts up but acts like its running on 4 cyl and wont gain any rpms when giving it throtle then eventually dies
  2. Z

    1990 cherokee limited starts up then dies

    I've got a 1990 cherokee limited 4.0 auto and the problem is that it starts up and acts like the timing is way retarded and when you give it gas it goes up about 400rpms then when you let off the gas it dies.i've got brand new plugs,wires,cap,rotor and a cps my fuel presure is good and my firing...
  3. Z

    Changing ecu units

    I gave more of a description of my problem
  4. Z

    Changing ecu units

    ​I have a 1990 cherokee limited and my ecu went out it was a 8953005428 and i put a 8953005225 in. it starts up and idles but cuts out bad 1200rpms unless i floor it.is there something i can do to make this ecu work right?WITH the (5425)ecu i have voltage to my injectors and voltage to my coil...
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