Detroit DD16 GHG14 (2014-16) Fault Code: SPN 4077 FMI 14 (MCM) Hydrocarbon Doser Fuel Line Pressure Failed Self – Test
DESCRIPTION:
Hydrocarbon (HC) doser fuel line pressure failed self – test.
MONITORED PARAMETER:
Hydrocarbon (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 any fuel system faults present, fix those first.
PROBABLE CAUSES:
1. Inspect the hydrocarbon doser block assy and the fuel doser injector valve fuel lines for any leaks.
2. Low fuel pressure.
3. Failed hydrocarbon doser fuel injection valve.
4. Perform parked regen.
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