Detroit DD15 EPA07 (2007-09) Fault Code: SPN 2659 FMI 0 (MCM) Exhaust Gas Recirculation Flow Target Error (High Flow)
DESCRIPTION:
Exhaust Gas Recirculation (EGR) flow target error diagnostic – high flow.
MONITORED PARAMETER:
EGR Mass Flow
TYPICAL ENABLING CONDITIONS:
1. Desired EGR mass flow greater than .08.
2. EGR in closed loop control.
3. Charge air cooler (CAC) outlet temperature greater than 0°C (32°F).
4. Engine speed 1080-2500 rpm.
5. Engine torque 200 to 2500 N·m (148 to 1844 abaft).
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.
MONITOR SEQUENCE:
None
EXECUTION FREQUENCY:
Always enabled
TYPICAL DURATION:
20
DASH LAMPS:
1. MIL
2. CEL
ENGINE REACTION:
Derate 25%
VERIFICATION:
1. Start engine.
2. Warm up such that coolant temperature 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).
5. Desired EGR mass flow greater than .08 EGR in closed loop control.
6. CAC outlet temperature greater than 0°C (32°F).
7. Engine speed 1080 to 2500 rpm.
8. Engine torque 200 to 2500 N·m (148 to 1894 lb·ft).
PROBABLE CAUSES:
1. EGR delta P sensor.
2. EGR delta P harness/connector.
3. EGR delta P sensor port.
4. EGR valve.
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