DESCRIPTION:This fault code sets when the different between the actual EGR flow and the commanded EGR flow is lower than a calibrated threshold.

MONITORED PARAMETER:EGR mass flow

TYPICAL ENABLING CONDITIONS:1. Desired EGR mass flow greater than .08.2. EGR in closed loop control.3. CAC outlet temperature greater than 0°C (32°F).4. Engine speed 1080 to 2500 rpm.5. Engine torque 200 to 2500 N·m (148 to 1844 lb·ft).6. Coolant temperature greater than 65°C (149°F).7. Ambient temperature greater than -8°C (18°F) ambient.8. Barometric pressure greater than 755 mbar (11 psi).

MONITOR SEQUENCE:None

EXECUTION FREQUENCY:Always enabled

TYPICAL DURATION:20

DASH LAMPS:MIL

ENGINE REACTION:None

VERIFICATION:1. Start engine.2. Warm up so that coolant temperature is greater than 65°C (149°F).3. Ensure ambient temperature greater than -8°C (18°F).4. Ambient barometric pressure greater than 755 mbar (11 psi).

PROBABLE CAUSES:1. EGR delta p sensor.2. EGR delta p harness/connector.3. EGR delta p sensor port.4. EGR valve.