NOTE: The motor control module (MCM) monitors the rail pressure and when a leakage rate is greater than 100 1/h, the MCM sets the code. There is no fault reaction (limp home mode) associated to this code. POSSIBLE CAUSES:1. External fuel leakage between the high pressure pump and fuel injectors.2. High pressure pump (pumping elements).3. Fuel injector (amplifier or needle) leakage.4. Pressure limiting valve (PLV) leakage (internal). PROBABLE CAUSES:1. If any other codes present, fix those first.2. Clear code and road test. If it doesn’t come back, return vehicle to customer.3. Check for internal and external high pressure fuel system...

POSSIBLE CAUSES:1. External fuel leakage between the high pressure pump and fuel injectors.2. Pressure limiting valve (PLV) leakage (internal).3. Fuel filter integrity (loose caps, plugged filters).4. Fuel supply issues (fuel level, fuel aeration, leaking fuel lines, fuel restrictions).5. Intermittent loss of engine speed signal .6. High pressure pump internal failure.7. Fuel injector (amplifier or needle) leakage.8. Fuel contamination.9. Rail pressure sensor.10. Motor control module (MCM). PROBABLE CAUSES:1. External fuel leakage between the high pressure pump and fuel injectors.2. Pressure limiting valve leakage (internal).3. Fuel filter integrity.4. Fuel supply issue.5. Intermittent loss of engine speed signal.6. High pressure pump internal failure.7....

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 than 200 mA. TYPICAL DURATION:Two seconds DASH LAMPS:1. MIL2. CEL ENGINE REACTION:Derate 25% VERIFICATION:Engine Idle: One minute. PROBABLE CAUSES:1. Wiring between the ECM and the quantity control valve.2. Quantity control valve.

NOTE: Please see the step by step troubleshooting procedures for this specific code.

NOTE: The motor control module (MCM) sets the code. POSSIBLE CAUSES:1. External fuel leakage between the high pressure pump and fuel injectors.2. Pressure limiting valve (PLV) leakage (Internal).3. Fuel filter integrity (Loose caps, plugged filters).4. Fuel supply issues (fuel level, fuel aeration, leaking fuel lines, fuel restrictions).5. Intermittent loss of engine speed signal.6. High pressure pump internal failure.7. Fuel injector (amplifier or needle) leakage.8. Fuel contamination.9. Rail pressure sensor.10. MCM. PROBABLE CAUSES:1. External fuel leakage between the high pressure pump and fuel injectors.2. Pressure limiting valve leakage (internal).3. Fuel filter integrity.4. Fuel supply issue.5. Intermittent loss of engine speed signal.6....