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Thread: Chevy TBI 383 Converison

  1. #1
    Carb and Points!
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    Chevy TBI 383 Converison

    My son and I just finished up a tbi cinversion in his 1972 GMC truck, put a vortec 383 engine and 700r4 trans. The truck runs rich and we are haveing problems finding a way to see live data. Does anyone have any recomendations. I had a old scanner with the correct adapter to a 25 pin and then to usb but cant get any recomeded programs to work for us to diagnose the issues, Thanks in advance

  2. #2
    Super Moderator dave w's Avatar
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    TunerPro RT is a useful software; https://www.tunerpro.net/

    Pictures attached are screen shot samples from a TBI engine using TunerPro RT software.

    dave w
    Attached Images Attached Images

  3. #3
    Carb and Points!
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    Quote Originally Posted by dave w View Post
    TunerPro RT is a useful software; https://www.tunerpro.net/

    Pictures attached are screen shot samples from a TBI engine using TunerPro RT software.

    dave w
    I downloaded it but cant get the PC to communicate to the PCM, i have tried multiple ways and tried to find directions on this site but havent had any luck getting the communication issue solved

  4. #4
    Super Moderator dave w's Avatar
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    Oh, I forgot to mention TunerPro RT interfaces with the pickup diagnostic port using a USB ALDL cable. http://aldlcable.com/products/aldlobd1u.asp

    TunerPro RT is not plug-n-play. TunerPro RT needs to be configured with the correct make / model / year / computer part number ".adx" file. TunerPro RT will also need the USB driver installed and USB Cable "Com Port" configured.

    dave w

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