Detroit DD15 GHG14 (2014-16) Fault Code: SPN 3480 FMI 16 (MCM) High Hydrocarbon Doser Supply Pressure High
NOTE: The code occurs when the cut off is commanded to 100% and the compensation pressure is greater than 95 psi.
NOTE: If there are any other fuel system codes or 3480-14 present, fix those first.
PROBABLE CAUSES:
1. Failed doser pressure control valve in the high pressure flange.
2. Perform parked regen.
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