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Thread: hemi idle lag after rev help

  1. #1

    hemi idle lag after rev help

    i have a 2014 ram with the 5.7 and was wondering if anyone knew a way to reduce or get rid of the throttle lag after a rev going back to idle. i have heard many thing from it can be fixed with a throttle reset, to that you cant fix it because its used for emissions. Help

  2. #2
    There are tables for transient fuel decel that can be adjusted that should remedy this issue easily.

    If you need a custom tune message my facebook page @ demigod tuning

  3. #3
    i found out how to reduce the lag or slow decel, its in the spark tables.

  4. #4
    Advanced Tuner f.creek-ranch's Avatar
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    qt.jpg

    The table that I missed is pedal ramp rate feed Forward control.
    Dont know why HPTuners didnt give us this.
    For other Dodge this is active.

  5. #5
    Advanced Tuner f.creek-ranch's Avatar
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    Did you reduce the min spark, part throttle and MBT ?

  6. #6
    you want to make changes to the part throttle table, dont mess with the min spark tables. thats a limit for the overal spark. so on your p/t spark table you want to look at the top row from 15 to 4 thousand rpm and on your column up to .10 you can lower those by 5-10. i have done this on my truck and have had a quicker throttle deceleration.

  7. #7
    Advanced Tuner f.creek-ranch's Avatar
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    thanks. know about the min spark...

    thats what I do on my cars with a/t . On our streets I need the deceleration of the engine, not the economic. Especially with trailer.

  8. #8
    min spark is the limit for what the car will see and use throughout the time its running you dont need to mess with that. but ya i do that to all of my cars too. i dont need economy.