Detroit DD15 GHG14 (2014-16) Fault Code: SPN 2659 FMI 0 (MCM) Exhaust Gas Recirculation Flow Target Error Diagnostic – High Flow
DESCRIPTION:
This fault code sets when the difference between the actual EGR flow and the commanded EGR flow is higher than a calibrated threshold.
MONITORED PARAMETER:
EGR Mass Flow
MONITORED PARAMETER:
EGR Flow
TYPICAL ENABLING CONDITIONS:
1. CAC greater than 0°C (32°F).
2. Engine Speed 1080 to 2500 rpm.
3. Coolant Temperature Greater than 65°C (149°F).
4. Ambient Temperature Greater than -8°C (18°F) Ambient.
5. Barometric Pressure Greater than 755 mbar (11 psi).
MONITOR SEQUENCE:
None
EXECUTION FREQUENCY:
Always enabled
TYPICAL DURATION:
20
DASH LAMPS:
1. MIL
2. CEL
ENGINE REACTION:
Engine Derate
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. Road Test the Vehicle While Keeping the rpm Between 1080 and 2500.
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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