- Mechanical fault in the low-pressure section
The low pressure fuel pump delivery rate is too low
or
- Mechanical fault in the high pressure section
The high pressure fuel pump delivery rate is too low
or
- Defective component:
component, that is recognised as defective
or
B176 Sensor - Rail Fuel Pressure
or
Y154 Solenoid Valve - Fuel Pressure Regulation
or
Y161 Solenoid Valve - Fuel Metering
Note:
Refer to Service Manual
Important:
If an injector has been replaced, the Quantity Adjustment Code of the new injector must be programmed to the engine control unit.
After replacing the following component the programming function for the replacement of the corresponding component has to be performed by using the diagnostic tester:
B176 Sensor - Rail Fuel Pressure
Note:
The replacement of the components must be done in the listed order.
The system must be checked for proper operation after every replacement.
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