A Camshaft Position - Timing Over-Retarded (Bank 2)
The Powertrain Control Module (PCM) detected that the intake camshaft timing for Bank 2 is more retarded than commanded. This typically occurs when the variable valve timing (VVT) system fails to advance the camshaft to the target angle within a specified time.
While the vehicle can usually still be driven, prolonged driving with incorrect camshaft timing can lead to poor performance, reduced fuel economy, and potential internal engine wear. It should be diagnosed and repaired soon to prevent further VVT system damage.
Common symptoms
- Illuminated Check Engine Light
- Rough idle or stalling
- Reduced engine power and sluggish acceleration
- Decreased fuel economy
- Rattling noise from the engine on startup or idle
Likely causes
- Low engine oil level or dirty, degraded oil
- Faulty Variable Valve Timing (VVT) solenoid/oil control valve on Bank 2
- Clogged VVT oil passages or filter screens
- Worn or damaged timing chain, tensioner, or guides
- Faulty camshaft position sensor or wiring issues
- Defective VVT phaser/actuator on the Bank 2 intake camshaft
What to check before replacing parts
Check engine oil level and condition.
Look for: Oil that is significantly low, excessively dirty, or sludged, which prevents proper hydraulic operation of the VVT system.
Scan for related DTCs and monitor live VVT data.
Look for: Bank 2 intake camshaft position actual angle lagging significantly behind the commanded angle.
Inspect and test the Bank 2 VVT solenoid (Oil Control Valve).
Look for: Resistance out of specification, a stuck valve spool, or failure to actuate when 12V is applied.
Check the VVT solenoid oil screens/passages.
Look for: Sludge or metallic debris blocking the screens, restricting oil flow to the phaser.
Inspect the timing chain and VVT phaser mechanically.
Look for: A stretched timing chain, broken guides, or a physically damaged/stuck phaser assembly on Bank 2.
This page explains the generic P0022 definition and is general reference information, not a diagnosis for your specific vehicle. Actual causes, severity, and repairs vary by make, model, engine, and mileage — always confirm with a scan tool and a qualified technician before replacing parts.
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