- Mechanical fault in the high pressure section
or
- Mechanical fault in the low-pressure section
- Check the following mechanical fault sources:
Screen in fuel tank
Pressure relief valve in fuel tank
The low pressure fuel pump delivery rate is too low
The high pressure fuel pump delivery rate is too low
or
- Defective component:
component, that is recognised as defective
or
Y154 Solenoid Valve - Fuel Pressure Regulation
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.
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