Detroit Diesel

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22 november, 2025

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Detroit DD15 GHG14 (2014-16) Fault Code: SPN 1077 FMI 15 (MCM) Internal or External Leakage of the High Pressure Fuel System

NOTE: The motor control module (MCM) monitors the rail pressure and when a leakage rate is greater than 100 1/h,...

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22 november, 2025

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Detroit DD15 GHG14 (2014-16) Fault Code: SPN 1077 FMI 3 (MCM) Quantity Control Valve (QCV) Circuit Failed High

DESCRIPTION:Quantity control valve (QCV) circuit failed high. MONITORED PARAMETER:Quantity control valve (QCV) circuit. TYPICAL ENABLING CONDITIONS:Always on MONITOR SEQUENCE:None EXECUTION...

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22 november, 2025

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Detroit DD15 GHG14 (2014-16) Fault Code: SPN 1077 FMI 31 (MCM) Fuel Rail Pressure Deviation is Greater than 200 Bar for Eight Seconds

POSSIBLE CAUSES:1. External fuel leakage between the high pressure pump and fuel injectors.2. Pressure limiting valve (PLV) leakage (internal).3. Fuel...

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22 november, 2025

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Detroit DD15 GHG14 (2014-16) Fault Code: SPN 1077 FMI 4 (MCM) Quantity Control Valve (QCV) Circuit Failed Low

DESCRIPTION:Quantity control valve (QCV) circuit failed low. MONITORED PARAMETER:Quantity control valve (QCV) circuit. TYPICAL ENABLING CONDITIONS:Always on MONITOR SEQUENCE:None EXECUTION...

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22 november, 2025

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Detroit DD15 GHG14 (2014-16) Fault Code: SPN 1077 FMI 5 (MCM) Quantity Control Valve Current Too Low

DESCRIPTION:Quantity control valve (QCV) error. MONITORED PARAMETER:Quantity control valve. TYPICAL ENABLING CONDITIONS:RP closed loop control. MONITOR SEQUENCE:None EXECUTION FREQUENCY:Current less...

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22 november, 2025

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Detroit DD15 GHG14 (2014-16) Fault Code: SPN 1077 FMI 6 (MCM) Quantity Control Valve, Desired Current Does Not Match Actual Current

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Detroit Diesel