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International Automotive Technicians Network
Re: fuel fiter replacement problem
Posted to HD/Fleet Forum on 10/12/2020

The most common issue with that code after a filter change is the lower filter not being correctly seated on the LPFP module. Make sure the o-ring is not rolled and when installed the two plastic ears need to touch. If the filter is backed off even 1-1/2 turns... Login to read more.