DESCRIPTION:This fault will become active once the fuel compensation pressure reaches and stays above 599 kPa (87 psi) for GEN1 fuel system, or 799 kPa(116 psi) for GEN2 fuel system, for longer than 600 seconds during a driving regen, or 60 seconds during a parked regeneration with all conditions met.

MONITORED PARAMETER: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. MIL2. CEL

ENGINE REACTION:1. Derate 10%.2. DPF inhibit regeneration.

VERIFICATION:Parked regeneration

NOTE: If any other codes are active, fix those first.

PROBABLE CAUSES:1. HC doser or fuel doser injector valve fuel lines are blocked or leaking.2. Low pressure fuel out of spec (10-65 psi).3. Fuel compensation pressure sensor.4. Perform parked regen.