Any Cummins experts on here? Looking at a truck that has a 2010 isx, no dash lights on but scanner is showing
2637; Aftertreatment 1 Diesel Oxidation Catalyst (DOC) face plugged – root cause unknown
Anyone know what it could be? Truck has over 700k miles, and in the spaceship (exhaust stack) looks like part of it has been replaced, possibly the filter? Not really sure though.
wondering if a hard forced regen from the computer would clear it up?
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