Engine and gearbox (P)
P0028: Intake Valve Control Solenoid Issue (Bank 2)
The engine control unit (ECU) has detected a problem with the intake valve control solenoid on bank 2. This can affect the variable valve timing (VVT) system, leading to performance issues.
Checked by a licensed car technician · last reviewed 29 September 2026
Symptoms
- Engine runs rough
- Decreased fuel efficiency
- Check engine light on
- Reduced power
- Engine hesitation
Common causes
- Oil control valve mechanically stuck
- Sludge or debris in oil passages
- Low oil pressure
- Faulty oil control solenoid
- Wiring or connector issues
How to check it yourself
- Check engine oil level and condition
- Inspect wiring and connectors to the solenoid
- Test the oil control solenoid for proper operation
- Check for sludge or debris in oil passages
- Measure oil pressure
Can I keep driving?
The car can be driven, but performance may be reduced. Address the issue soon to avoid further damage.
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