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

How P0022 sets

The powertrain control module (PCM) commands a Bank 2 intake cam angle through the variable valve timing (VVT) solenoid and checks the result using the camshaft and crankshaft position sensors. When the measured cam angle stays later than the target by more than the allowed amount, or the phaser fails to lock in its base position, P0022 sets. Exact limits vary by manufacturer.

Common causes of P0022

Roughly most likely first; the actual cause depends on the vehicle and needs testing to confirm.

1. Low oil level or sludged oil
2. Bank 2 VVT solenoid stuck in the retard position
3. Bank 2 intake cam phaser worn or not locking
4. Stretched timing chain or weak tensioner
5. Restricted oil feed to the phaser
6. Incorrect cam installation

P0022 symptoms

• Check engine light on
• Hard start or rough idle
• Weak low-speed acceleration
• Increased fuel use
• Possible ticking or rattling from the timing area

How P0022 is diagnosed

1. Check oil level and quality
2. Record freeze frame and look for P0021, P0018 or P0020
3. Monitor desired versus actual Bank 2 cam angle in live data
4. Command the Bank 2 solenoid with a scan tool and verify movement
5. Inspect the solenoid and its screen
6. Measure timing chain stretch and confirm timing marks

Typical fixes for P0022

• Change oil and filter
• Replace the Bank 2 "A" oil control solenoid
• Replace the Bank 2 intake cam phaser
• Replace the timing chain set if worn
• Re-time the engine if marks are off

Replace parts only after testing confirms the cause — a code names the circuit or condition that failed a check, not necessarily the faulty part. We don’t publish per-repair prices; for what households actually spend on upkeep, see car repair costs.

Related codes & warning lights

P0022 FAQ

More fuel & air metering codes