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  1. M

    New member - P0299 turbo underboost

    Bought 2019 Ram 2500 Bighorn diesel with 21,000 miles on if. Turbo underboost P0299 has been reflashed x2. Fuel Mileage drop and some power loss. Been to dealership. All mopar parts. No modifications. Sorry to be a broken record but damn - I’m over this code/issue. I do a lot of interstate...
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