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Thread: 4l80e tcc still causing me trouble trying to tow a load across Kansas

  1. #1
    Tuner in Training
    Join Date
    Feb 2019
    Posts
    14

    4l80e tcc still causing me trouble trying to tow a load across Kansas

    Hello, I posted about my 4l80 tcc problems a few weeks to a month ago. I was having trouble with tcc slip. I added to the tcc offset and it works great unloaded. We took off for vacation yesterday and its not towing worth a shit.

    Lots of tcc slip. Throwing code 0741 and 1870. Wierd thing is, once I clear the code it works awesome for a couple miles then back to shit. That makes me.think the converter is fine, just something in the tune is hoaky. I've tried lots of crap and have had no luck making it stop.

    I posted my tune in my previous post, going to try to post one now from I-70.

    Does anyone have any suggestions for more robust lockup?

  2. #2
    Tuner in Training
    Join Date
    Feb 2019
    Posts
    14
    Cant figure out how to post a log or tune from my phone

  3. #3
    Tuner in Training
    Join Date
    Feb 2019
    Posts
    14
    I think I have it attached
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  4. #4
    Tuner in Training
    Join Date
    Feb 2019
    Posts
    14
    Tune
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