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.
Observable symptoms
1) Regeneration not possible
Probable cause
1) Aftertreatment Fuel Pressure Sensor
2) Aftertreatment fuel shut-off valve
3) Aftertreatment Fuel Pump
4) Fuel supply lines from engine fuel system
Related products
-
Allison 1000 & 2000 Gen 5 Fault Code:P2761 TCC PCS Control Circuit Open
1000 & 2000 Gen 5 -
Allison 1000 & 2000 Gen 5 Fault Code:U0073 CAN Communication Bus 1 Off
1000 & 2000 Gen 5
-
Volvo All Engines (2013 Emissions) Fault Code: P20BA00 PID: ACM Reductant Heater “A” Control Performance
All Engines (2013 Emissions) -
Allison 3000 & 4000 Gen 4 Fault Code: P2761 TCC PCS Control Circuit Open
3000 & 4000 Gen 4 -
Allison 3000 & 4000 Gen 4 Fault Code: P0735 Incorrect 5th Gear Ratio
3000 & 4000 Gen 4 -
CAT 3406E (Prefix 5DS or 1LW) Fault Code: 34 PID: 190 SPN: FMI: 2 Primary Engine Speed Loss of Signal
3406E (Prefix 5DS or 1LW)