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Thread: "Engine Power is Reduced" with no reduction of power?

  1. #1
    Tuner in Training WillRyan's Avatar
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    Dec 2010
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    38

    "Engine Power is Reduced" with no reduction of power?

    Like the title says, I am receiving the error message "Engine Power is Reduced" and the truck still drives like normal.

    Truck:
    2015 Chevy Silverado 2500 6.0 4x4

    HPTuners 3.0

    Has anyone had this issue before? The message will appear during startup, but once dismissed it will never pop up again. Only occurs at start up. I checked with the scanner and received no DTCs, hitting clear DTCs does nothing.

    I installed the factory tune and the message never appeared. Installed my tune and message reappears on every startup.

    Again, the truck performs all operations like normal even with this error message.

    Attached will be both the stock tune and my tune.
    Photo Mar 06, 8 21 53 PM.jpg2015 KHammond6.0_REV1.hpt2015 KHammond6.0_STOCK.hpt

  2. #2
    Can't use max values on speed limiter anymore. Set a realistic value.

  3. #3
    Tuner
    Join Date
    Mar 2014
    Location
    McAllen,TX
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    160
    x2 u cant max out the speed limiter which is 318 mph set it for 250
    Josh Performance Tuning (956)784-0059
    https://www.facebook.com/joshperformancetuning

  4. #4
    Tuner in Training WillRyan's Avatar
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    Dec 2010
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    Thanks y'all! Will make the change either Sunday or Monday once I'm back from Vacation!

  5. #5
    Tuner in Training WillRyan's Avatar
    Join Date
    Dec 2010
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    Error message went away after entering a reasonable value for the speed limiter!! Thank y'all!