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Thread: 2020 chevrolet silverado AFM Delete

  1. #1
    Tuner in Training
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    Mar 2022
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    2020 chevrolet silverado AFM Delete

    hello has anyone deleted AFM/DFM on a 2020 Chevrolet silverado 5.3.
    I just want to disable it in the tune so i am just wondering if anyone has done this
    Last edited by JOHAN WALL; 03-06-2023 at 04:50 PM.

  2. #2
    Tuning Addict 5FDP's Avatar
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    May 2012
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    Rogers, MN
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    Buy the "Range Technology" device if that is all the person is after. You'll waste so much money using HP Tuners for only that.
    2016 Silverado CCSB 5.3/6L80e, not as slow but still heavy.

    If you don't post your tune and logs when you have questions you aren't helping yourself.

  3. #3
    Tuner in Training
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    Dec 2013
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    Yes, super easy to disable. You can also disable the auto start/stop.

  4. #4
    Potential Tuner
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    May 2019
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    Picayune, MS
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    Hello dropped lifter on my 2020 Silverado w/5.3. So I'm replacing with stage one cam, lifters n springs. Already paid HP to unlock my pcm and ordered the cam from TSP. So I'm looking for a Base Tune or any info that may be of some HELP

    THANKS

  5. #5
    Tuner in Training
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    Quote Originally Posted by Erick364 View Post
    Yes, super easy to disable. You can also disable the auto start/stop.
    OK thank you but do I have to send the computer to HP tuners to unlock it or is that not necessary

  6. #6
    Tuning Addict 5FDP's Avatar
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    It's right on the website.

    https://www.hptuners.com/product/gm-...-ecm-services/

    Cheaper to buy a plug in device if all you want is the AFM off.
    2016 Silverado CCSB 5.3/6L80e, not as slow but still heavy.

    If you don't post your tune and logs when you have questions you aren't helping yourself.