Detroit Diesel

NOTE: Please see the step by step troubleshooting procedures for this specific code. 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. Detroit DD16 GHG14 (2014-16) Fault Code: SPN 655 FMI 6 (MCM) Injector Cylinder #5 Needle Control Valve Shorted Circuit Detroit DD16 GHG14 (2014-16) Fault Code: SPN 655 FMI 5 (MCM) Injector Cylinder #5 Needle Control Valve Circuit Open Detroit DD16 GHG14 (2014-16) Fault Code: SPN 655 FMI 4 (MCM) Injector Cylinder #5 Needle Control Valve Abnormal Operation...

DESCRIPTION:Injector cylinder #6 needle control valve abnormal operation (MAX). MONITORED PARAMETER:Injector cylinder #6 needle control valve. TYPICAL ENABLING CONDITIONS:Engine rpm = idle or higher. MONITOR SEQUENCE:None EXECUTION FREQUENCY:Continuous when enabling conditions met. TYPICAL DURATION:2 seconds DASH LAMPS:1. MIL2. CEL ENGINE REACTION:Derate 25% 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. Detroit DD16 GHG14 (2014-16) Fault Code: SPN 655 FMI 7 (MCM) Injector Cylinder #5 Needle Control Valve Stuck Open Detroit DD16 GHG14 (2014-16) Fault...

DESCRIPTION:Injector cylinder #6 needle control valve abnormal operations (MIN). MONITORED PARAMETER:Injector cylinder #6 needle control valve. TYPICAL ENABLING CONDITIONS:Engine RPM = idle or higher. MONITOR SEQUENCE:None EXECUTION FREQUENCY:Continuous when enabling conditions met. TYPICAL DURATION:2 seconds DASH LAMPS:1. MIL2. CEL ENGINE REACTION:Derate 25% 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. Detroit DD16 GHG14 (2014-16) Fault Code: SPN 656 FMI 3 (MCM) Injector Cylinder #6 Needle Control Valve Abnormal Operation (MAX) Detroit DD16 GHG14 (2014-16)...

DESCRIPTION:Injector cylinder #6 needle control valve circuit open. MONITORED PARAMETER:Injector cylinder #6 needle control valve. TYPICAL ENABLING CONDITIONS:Engine rpm = idle or higher. MONITOR SEQUENCE:None EXECUTION FREQUENCY:Continuous when enabling conditions met. TYPICAL DURATION:2 seconds DASH LAMPS:1. MIL2. CEL ENGINE REACTION:Derate 25% 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. Detroit DD16 GHG14 (2014-16) Fault Code: SPN 656 FMI 4 (MCM) Injector Cylinder #6 Needle Control Valve Abnormal Operation (MIN) Detroit DD16 GHG14 (2014-16) Fault...

DESCRIPTION:Injector cylinder #6 needle control valve shorted circuit. MONITORED PARAMETER:Injector cylinder #6 needle control valve. TYPICAL ENABLING CONDITIONS:Engine rpm = idle or higher. MONITOR SEQUENCE:None EXECUTION FREQUENCY:Continuous when enabling conditions met. TYPICAL DURATION:Two seconds DASH LAMPS:1. MIL2. CEL ENGINE REACTION:Derate 25% 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. Detroit DD16 GHG14 (2014-16) Fault Code: SPN 656 FMI 5 (MCM) Injector Cylinder #6 Needle Control Valve Circuit Open Detroit DD16 GHG14 (2014-16) Fault Code:...