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Thread: Grand Cherokee SRT 8 Hemi cylinder deaktivation

  1. #1
    Potential Tuner
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    Mar 2018
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    Smile Grand Cherokee SRT 8 Hemi cylinder deaktivation

    Hy friends,
    sorry for my bad english.
    i have a question. how i can deaktivate the cylinder deaktivation in every drive mode .
    grand cherokee srt8 building year 2015, 6.4 engine.
    please write me an email if anybody can help me.
    i pay for it. thanks

  2. #2
    Tuning Addict 5FDP's Avatar
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    Open the tune file and click Engine > Fuel > General. It should be right there is the top left hand corner. There is a master enable/disable switch there.
    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
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    i open it but i can?t find it,
    maybe my english is to bad
    if you have time you can write me an email.
    maybe you can show me. thanks alot for fast reply

  4. #4
    Tuning Addict 5FDP's Avatar
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    You likely aren't in the advanced view.

    Click the EDIT tab at the top, then down the VIEW and click ADVANCED.

    Then follow what I said and you'll see it. I can't write you an email, this is very straight forward.
    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.

  5. #5
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    Mar 2018
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    ok, i think i find it?

    Multi-displacement system
    but i am not shure which setting is right.
    the factory set i see is :
    MDS enable -disabled
    vss min - 14 km/h
    vss max - 66 km/h
    (eco)vss min - 14 km/h
    (eco)vss max - 72 km/h

    wich setting is already the right one to deaktivate all time?
    thanls a lot for the super fast reply and help.

  6. #6
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    Mar 2018
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    Hy friends, anybody have a solution for me ?
    i am not sure what i have to do with the settings.
    the original setting see below
    the factory set i see is :
    MDS enable -disabled
    vss min - 14 km/h
    vss max - 66 km/h
    (eco)vss min - 14 km/h
    (eco)vss max - 72 km/h

  7. #7
    Senior Tuner SultanHassanMasTuning's Avatar
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    Nov 2009
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    3,149
    just diabled MDS and thats it
    Follow @MASTUNING visit www.mastuned.com
    Remote Tuning [email protected]
    Contact/Whatsapp +966555366161

  8. #8
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    Orange TX
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    Yep......Disable and Done!!!!!