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Detroit DD15 GHG14 (2014-16) Fault Code: SPN 3480 FMI 2 (MCM) Hydrocarbon Doser Fuel Line Pressure Low

DESCRIPTION:
Hydrocarbon (HC) doser fuel line pressure low.

MONITORED PARAMETER:
HC doser fuel line pressure.

TYPICAL ENABLING CONDITIONS:
Dosing enabled

MONITOR SEQUENCE:
None

EXECUTION FREQUENCY:
Continuous when enabling conditions met.

TYPICAL DURATION:
One minute

DASH LAMPS:
1. MIL
2. CEL

ENGINE REACTION:
Derate 10%

VERIFICATION:
Parked regeneration

NOTE: If there are any other fuel system codes, 3480-14, 3480-31, 3480-1, or 4407-14 present, fix those first.

PROBABLE CAUSES:
1. Inspect the Hydrocabon (HC) doser block assy and associated fuel lines for leaks.
2. Perform parked regen.

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