Diesel Jeep Forum banner

unhappy with computer update

  1. Milage way down after CARB fix

    West / West Coast Owners
    I had my 2014 JGC reflashed May 31. Since then I have noticed a slight decrease in performance, starting from a complete stop. The most change has been in getting poorer mileage. In town has decreased from 22-23 to 17. Highway has dropped from 29-31 to 24. I also had to return to the dealer to...
Top