Volvo All Engines (2017 Emissions) Fault Code: P20DE00 PID: EMS Exhaust Aftertreatment Fuel Pressure Sensor Circuit Range/Performance
Volvo All Engines (2017 Emissions) Fault Code: P20DE00 PID: EMS Exhaust Aftertreatment Fuel Pressure Sensor Circuit Range/Performance
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
Observable symptoms
1) Regeneration not possible
Probable cause
1) Aftertreatment Fuel Pressure Sensor
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