Changing maps without user input sounds like a power problem - you may have lost power long enough for the map selection params to reset. First thing I'd do is give the battery and terminals a good checkup.
Edit: A power loss could also explain the sluggishness - ECM lost tuning params and had to relearn.
If battery is OK, I'd next look for a wiring problem.
But I'm no expert on Ecutek so YMMV.
Last edited by SouthArk370Z; 08-02-2017 at 09:18 AM.
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