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Detroit DD15 EPA10 (2010-13) Fault Code: SPN 656 FMI 4 (MCM) Injector Cylinder #6 Needle Control Valve Abnormal Operation (MIN)

DESCRIPTION:
This code will set when the Needle solenoid current response time does not meet requirement.

MONITORED PARAMETER:
Injector cylinder #5 needle control valve current.

TYPICAL ENABLING CONDITIONS:
Always enabled

MONITOR SEQUENCE:
None

EXECUTION FREQUENCY:
Continuous when enabling conditions met.

TYPICAL DURATION:
.06 msec

DASH LAMPS:
1. MIL
2. CEL

ENGINE REACTION:
1. Derate 25%.
2. EGR Valve shut.
3. DPF Inhibit Regeneration.

VERIFICATION:
Engine idle: One minute.

NOTE: If code 168-xx or 723-xx present, fix those first.

PROBABLE CAUSES:
1. Front fuel injector harness connection (14-pins).
2. Injector harness.
3. Failed injector.
4. Engine side harness failure.
5. MCM (Engine ECM) failure.

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