calibrations
o.k, i pulled these calibration #'s off my hyperpac. VXC4NK.HEX,AMZ2AL.HEX,FDCANABS2. Dont know what all this means but i do know that after my truck got updated at dealer in june of 06 my milage went from 18mpg at 80 mph down to 14mpg! Not only that but it never started as well on cold winter days as it did the previous 2 winters.
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