I recently purchased an inTune I-1000 and flashed the standard DiabloSport tune onto my 2006 Impala SS with the 5.3L Ls4 motor. Once I reached cruising speed, the car would randomly lurch forward as if down shifting from time to time(mainly as a was letting off the gas pedal). Are there adjustments i can make to eliminate that? I had to restore the vehicle as a result.
Please help.
I didn't find the right solution from the Internet.
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