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International Automotive Technicians Network
Re: IH 4900 DT530 CODE 333
Posted to HD/Fleet Forum on 5/30/2018

Its a single box 98 . I think we got it figured out, the ipr was sticking when coming of the highway, so the icp pressure was staying high and not dropping fast enough . This was making it code for having more than 325 pressure difference for more than 7 secon... Login to read more.