Volvo All Engines (2010 Emissions) Fault Code: SPN 3480 FMI 2 PID: PSID 108 Aftertreatment DPF Fuel Pressure
During DPF regeneration the Aftertreatment Fuel Pressure Sensor monitors the fuel pressure rise and drop in the Aftertreament Hydrocarbon Dosing Module. During Air Purge the Aftertreatment Fuel Pressure Sensor monitors the air pressure rise and drop in the Aftertreament Hydrocarbon Dosing Module. The Engine Control Module (ECM) uses this input to determine if the system is operating correctly.
Conditions for diagnostic trouble code (DTC):
1) The sensor signal is not rational
2) Aftertreatment fuel pressure below Placeholder, aftertreatment fuel shutoff valve open
Observable symptoms
1) Regeneration not possible
2) Regeneration aborted
Probable cause
1) Air in the fuel system
2) Aftertreatment fuel shut-off valve, Stuck in one position
3) Fuel filter
4) De-aeration valve
5) Overflow valve
6) Fuel pump
Detailed information
1) This DTC will only set during an aftertreatment DPF service regeneration
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