Possible Causes
- Electrical Cause
- Yes
- Mechanical Cause
- Yes
- Monitor Description
- Inferred mixture strength (Lambda) below threshold, (richer mixture)
- Prioritized List of Possible Causes
- Blockage or restriction of air entering cylinder
- Fuel rail blocked, damaged
- Exhaust manifold blocked or restricted
- Camshaft profile switching system failure
- Fuel injector failure
- Valve train component fault - Excessive friction