Common Symptoms
- Check engine light illuminated
- Rough idle or engine stalling
- Hard starting or extended cranking
- Strong fuel odor from engine bay
- Poor fuel economy
- Loss of engine power under acceleration
Most Likely Root Causes
- Leaking fuel injector O-rings or seals
- Damaged fuel rail or fuel rail connections
- Failed high-pressure fuel pump seals
- Cracked or deteriorated fuel lines or fittings
- Faulty fuel pressure regulator
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Component Location
Fuel system components are located on the engine, typically along the fuel rail assembly mounted on the intake manifold or cylinder head.
Manufacturer Notes
Common-rail diesel engines are particularly susceptible to injector seal leaks that trigger this code due to extremely high fuel pressures.
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