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Thread: 2016 LT1 A&A Blower Kit (Reduced Engine Power) Problem?

  1. #1
    Tuner in Training
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    2016 LT1 A&A Blower Kit (Reduced Engine Power) Problem?

    I have a 2016 with an A&A kit on the car. The car is running great and making great power at WOT. I've had no issues until after all the tuning was complete.
    At random when you go hard on the accelerator the "Reduced Engine Power" message will pop up on the DIC and the car will say "Speed is Limited to 40MPH" or whatever speed you are going at the time. At this point you cannot go WOT or hard on the accelerator until the car has been turned off and it resets everything. I have seen the car do this mainly under hard acceleration but it has done it to me on deceleration after a WOT blast on the interstate.

    Any ideas?

  2. #2
    Senior Tuner Ben Charles's Avatar
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    Post the tune... I be I already know what this is though... Throttle settings need to be adjusted

    Email Tunes, [email protected]
    96 TA Blown/Stroked, 4L80E/Fab 9
    15 C7 A8 H/C 2.3 Blower/PI
    14 Gen 5 Viper
    Custom Mid Engine chassis, AKA GalBen C

  3. #3
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    2016 LT1 A&A Blower Kit (Reduced Engine Power) Problem?

    Here's the tune for my car.
    Attached Files Attached Files

  4. #4
    Senior Tuner Ben Charles's Avatar
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    2 things I see that have caused issues with 16 model vehicles.
    1 is the speedo settings you changed
    2 put the baro DTC's back to stock

    Problem should be solved
    Also that Peak TQ table is not correct, but this rig doesn't show 100 throttle at WOT (closes throttle)

    Email Tunes, [email protected]
    96 TA Blown/Stroked, 4L80E/Fab 9
    15 C7 A8 H/C 2.3 Blower/PI
    14 Gen 5 Viper
    Custom Mid Engine chassis, AKA GalBen C

  5. #5
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    I will make the changes and let you know how it does.
    So I assume when you say the Peak TQ is not correct it is because you feel it is too high?

  6. #6
    Senior Tuner Ben Charles's Avatar
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    Peak tq needs to be set a little higher than actual tq (worked the best for me so far)
    Usually if the speedo setting ste not right it goes into rep about 10 seconds after a flash.... So I doubt that's it... Look at the Baro

    Email Tunes, [email protected]
    96 TA Blown/Stroked, 4L80E/Fab 9
    15 C7 A8 H/C 2.3 Blower/PI
    14 Gen 5 Viper
    Custom Mid Engine chassis, AKA GalBen C

  7. #7
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    Yeah so I changed Baro and Speedo settings a bit and nothing improved.
    The other thing I did not mention in first post was when the car goes to "Reduced Engine Power" it also throws a "Check Engine" light (DTC P16F3) and the TCS Electronic Stability Control Light pops on.
    I have found what appears to be a solution and that is raise the "Reduced Power Mode" settings in Torque Management. I just don't know if that is the right way to go about it.