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Thread: Invalid application key error

  1. #1

    Invalid application key error

    I have had my MPVI for some time now and used it many times, the last time i used it was a week or so ago. I went to use it today and I got the invalid app message. I really need to get this up and running for a dyno session tomorrow.
    any help would be great!

  2. #2
    Tuner in Training
    Join Date
    Mar 2015
    Mission Hills, CA
    I have the same problem, they just told:

    ["Unfortunately this is the only option I can offer in this case.
    Please send the interface to: HP Tuners, LLC"]

  3. #3
    This article may help if anyone is having this issue still: