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Thread: 78CJ with sbc and not happy performance

  1. #1
    Fuel Injected!
    Join Date
    Aug 2021
    Age
    63
    Posts
    30

    78CJ with sbc and not happy performance

    Dear All, I am looking for assistance getting my jeep back to running like it should be. I have been reviewing posts upon posts looking for "the" answer. I now have Tunerpro RT, the moates ALDL cable combo, $42 XDF & ADS files from Tunerpro. My problem is finding the correct BIN file for my set up. Looking at the gearhead index under *7747, I am overwhelmed.
    My set up is: 70's chevy 350 2 bolt, stock pistons 030 over, 195 heads, cam of 69 vette, Howell TBI, 7747 OBDI ECM, no EGR, no Cat.
    Tech support told me to treat it like a 1990 chevy pick up 5.7L. It ran great, suddenly since May this year it is stumbling under load, and stalling occasionally no error codes. Diagnosed by wallet for all sensors, pumps, filters. Fuel pressure is good etc.
    I desire to scan log while running to see if I go to closed loop, and what other settings are.
    Thank you for your time

  2. #2
    Super Moderator dave w's Avatar
    Join Date
    Feb 2011
    Posts
    6,308
    TunerPro RT is a good scan tool.

    dave w

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