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Thread: x7F service not available

  1. #1
    Potential Tuner
    Join Date
    Apr 2018
    Posts
    3

    x7F service not available

    Sooo heres my issue. Im trying to connect hp tuners to a vehicle im working on to disable the vct. Now when i plug the dongle in and try to read the ecu it gives me an error of x7F service not supported in active session. What does this mean, as i have never experianced it before. Im trying to hook it to a 2009 Ford F150 5.4l. Thanks for any help in advance.

  2. #2
    Advanced Tuner
    Join Date
    Sep 2010
    Location
    FL
    Posts
    344
    Just curious whatever became of this. What caused it?