Engine and gearbox (P)
P003F: Camshaft Profile Actuator Stuck
The intake camshaft profile actuator on bank 2 is stuck in the high-lift position, affecting idle quality and emissions. This can lead to poor engine performance.
Checked by a licensed car technician · last reviewed 30 September 2026
Symptoms
- Rough idle
- Increased emissions
- Reduced fuel efficiency
- Engine hesitation
- Check engine light on
Common causes
- Locking pin stuck engaged
- Carbon or debris buildup
- Component wear with age
How to check it yourself
- Check for any stored codes and clear them
- Inspect for carbon buildup around the actuator
- Examine the actuator for mechanical wear
- Test the actuator's electrical connections
- Consider professional inspection if unresolved
Can I keep driving?
The car can be driven, but performance may be reduced and emissions increased.
General guidance, not a professional inspection. Confirm faults with measurements before buying parts, and use a qualified mechanic for brakes, steering, fuel leaks, airbags, and other safety-critical work. Terms and disclaimer