P05FC

Symptoms

• Difficulty starting the engine in the cold
• Unstable operation of bank 2 during warm-up
• Misfire in bank 2 cylinders during cold start
• Increased fuel consumption
• Check Engine Light Is On

Causes

• High pressure pump fault (bank 2)
• Worn bank 2 fuel pressure regulator
• Clogged high pressure fuel filter
• Insufficient inlet pressure (low pressure pump)
• Bank 2 injectors clogged

How to Fix

1. Read codes, check for P05FC and similar for bank 1
2. Check the fuel pressure in the low pressure system (normal: 3–6 bar)
3. Check the pressure in the high pressure system of bank 2 during a cold start
4. Replace high pressure fuel filter
5. Check bank 2 pressure regulator
6. Diagnose the high pressure pump

Related codes

Error P05FC by Vehicle Brand