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Badp dpf pressure lines

618 Views 2 Replies 3 Participants Last post by  eartick
Should i just leave the lines to the dpf filter opened or can I plug the lines I drove the truck with them pluged and got a low dpf pressure code.
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i kept the rubber hoses attatched to dpf. left opening open on truck. i think only codes are 244 and 489 and possible 242 once in a while.
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