P0022 Code – "A" Camshaft Position Timing Over-Retarded (Bank 2)

The P0022 diagnostic trouble code (DTC) is a generic OBD-II powertrain code that indicates the engine control module (ECM) has detected that the intake camshaft timing on Bank 2 is more retarded than the manufacturer's specified limit. This condition is commonly caused by Variable Valve Timing (VVT) system faults, poor engine oil condition, or mechanical timing problems.

What Does P0022 Mean?

P0022 stands for "A" Camshaft Position Timing Over-Retarded (Bank 2). It means the intake camshaft on Bank 2 is not reaching the commanded position because its timing is excessively delayed.

Symptoms of P0022

• Check Engine Light illuminated.
• Reduced engine power.
• Rough idle.
• Poor acceleration.
• Hard starting.
• Increased fuel consumption.
• Engine hesitation or stalling.

Common Causes

• Low or contaminated engine oil.
• Faulty VVT oil control solenoid.
• Blocked engine oil passages.
• Stretched timing chain or incorrect valve timing.
• Faulty camshaft position sensor.
• Faulty VVT actuator.
• Damaged wiring or connectors.
• Faulty ECM (rare).

How to Diagnose P0022

1. Check the engine oil level and condition.
2. Scan for additional diagnostic trouble codes.
3. Monitor camshaft timing with live scan data.
4. Inspect and test the VVT oil control solenoid.
5. Inspect timing chain alignment.
6. Test the camshaft position sensor.
7. Inspect wiring and electrical connectors.

How to Fix P0022

• Replace dirty engine oil and oil filter.
• Replace the faulty VVT oil control solenoid.
• Clean blocked oil passages.
• Repair damaged wiring or connectors.
• Replace the camshaft position sensor if necessary.
• Repair or replace worn timing chain components.
• Replace the VVT actuator if defective.

Estimated Repair Cost

• Oil and filter change: $40–$120
• Camshaft position sensor replacement: $80–$250
• VVT oil control solenoid replacement: $150–$400
• VVT actuator replacement: $300–$900
• Timing chain replacement: $800–$2,500+

Note: Repair costs vary depending on the vehicle manufacturer, engine type, labor rates, and geographic location.

Related Diagnostic Trouble Codes

• P0020
• P0021
• P0023
• P0024
• P0025

Can You Drive with P0022?

Driving with code P0022 is not recommended. Continuing to operate the vehicle with incorrect camshaft timing may reduce engine performance and could result in severe engine damage if a mechanical timing problem exists.

Conclusion

P0022 indicates that the intake camshaft timing on Bank 2 is excessively retarded. The most common causes include dirty engine oil, VVT system faults, timing chain wear, or faulty sensors. Prompt diagnosis and repair can restore proper engine timing and prevent costly engine repairs.