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Thread: rpms drop past idle setpoint when letting off gas? suggestions

  1. #1
    SupraForums Member
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    rpms drop past idle setpoint when letting off gas? suggestions

    Hey guys

    Any suggestions on what to adjust for this scenario....

    When I let off the gas, like coming to a stoplight, my rpms will dip well below my idle setpoint. The car kinda bogs and then recovers to a normal idle.

    It doesnt drop low enough to stall, but pretty close.

    Not sure if this is a function of the accel/decel table, decel cut, or something else.

    Any suggestions??

    Thanks!
    VQ38DETT with ProEFI128 on Twin 6262
    Corn Fed

  2. #2
    www.spracingonline.com Sound Performance's Avatar
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    You can try adjusting that area of the VE map but basically it is a function of the factory ecu trying to control your idle speed. Really gets bad if the car has cams!


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