P0022 on a Toyota Camry means the ECM has detected that the intake camshaft on Bank 2 is over-retarded relative to its commanded position: most commonly caused by oil sludge or low oil pressure preventing the variable valve timing (VVT-i) system from advancing the cam to its target position, a failed oil control valve (OCV) solenoid that cannot direct oil pressure correctly, or a worn VVT actuator gear that cannot mechanically respond to oil pressure commands.
On the 3.5L 2GR-FE V6 Camry, P0022 on Bank 2 (the rear bank, firewall side) has a specific diagnostic path that differs slightly from the Bank 1 equivalent code P0012.
“I got P0022 on my 2011 Camry V6 with 135,000 miles. First thing the shop did was an oil change with Toyota 0W-20 synthetic and ran an engine flush. Code went away for about 300 miles then came back. That told them it was the OCV solenoid, not just dirty oil. OCV replacement fixed it for good. Should have done it without the flush first: would have saved $100.”: Andrea Kowalski, 2011 Camry SE V6 owner
Understanding P0022 on the Toyota Camry
What “Over-Retarded” Means in VVT-i Context
Toyota’s Variable Valve Timing with intelligence (VVT-i) system advances and retards the intake camshaft relative to the crankshaft to optimize engine performance, fuel economy, and emissions across the RPM range. The ECM commands a target cam position using the oil control valve, and the camshaft position sensor reports actual cam position. “Over-retarded” means the cam is positioned further toward the retarded end than the ECM commanded: the system tried to advance the cam to a target position but the cam moved less than required (or moved in the wrong direction). The ECM detects this deviation, exceeds the tolerance threshold, and stores P0022.
Bank 2 on the Toyota Camry 3.5L 2GR-FE
On the 3.5L V6 Camry (2006 to present), Bank 2 is the rear cylinder bank: the bank facing the firewall. The Bank 2 intake cam OCV solenoid is located on the rear bank cylinder head and is accessible from the rear of the engine, which requires either reaching over the intake manifold or removing components for proper access. Note for 4-cylinder Camry owners: the 2.5L 2AR-FE four-cylinder Camry has only one bank. P0022 on a four-cylinder Camry would be unusual; P0012 (intake cam over-retarded, Bank 1) is the applicable code on four-cylinder models. P0022 on a Camry almost always indicates the 3.5L V6 application.
Diagnosing P0022 on the Toyota Camry 3.5L
Step 1: Engine Oil Check: Before Any Parts
Why Oil Condition Is the Critical First Variable
Andrea Kowalski’s experience illustrates the exact sequence: an oil change first establishes whether the code is oil-related before condemning the OCV solenoid or VVT actuator. Toyota’s 3.5L 2GR-FE requires 5W-30 or 0W-20 full synthetic (check the specific model year in the owner’s manual) because the VVT-i system’s oil passages are narrow and highly sensitive to oil viscosity and cleanliness. Check the following before any other diagnosis:
- Oil level: on the dipstick with engine warm, oil should be in the crosshatch zone
- Oil condition: pull the dipstick and observe color and consistency. Dark black oil with a burnt smell indicates degraded oil; sludgy, thick oil indicates extended change intervals
- Oil change interval: if the oil has not been changed within 5,000 to 7,500 miles, perform the change first and monitor for code recurrence If the code returns within 200 miles of a fresh synthetic oil change: the oil alone is not the cause. Proceed to OCV testing.
Step 2: Oil Control Valve (OCV) Solenoid Testing
Location of the Bank 2 Intake OCV on Toyota Camry
The intake camshaft OCV solenoid for Bank 2 is mounted on the rear cylinder head, toward the firewall side of the engine. On the 3.5L 2GR-FE, it is accessible but requires either a flexible extension or reaching from above the engine after removing the engine cover.
OCV Resistance Test
Procedure:
- Disconnect the OCV electrical connector
- Set a multimeter to resistance (ohms)
- Measure resistance across the two terminals of the OCV solenoid Specification for Toyota 2GR-FE OCV: approximately 6.9 to 7.9 ohms at 68°F (20°C)
- Within specification: solenoid resistance is acceptable; test the filter screen next
- Outside specification: solenoid is electrically failed; replace the OCV assembly
OCV Filter Screen Inspection
The OCV has a small mesh filter screen at its oil inlet port that catches debris before it enters the solenoid and the VVT actuator passages. A partially clogged screen restricts oil flow to the VVT system, causing the cam to respond sluggishly and store P0022 without the solenoid itself being electrically failed. Remove the OCV and inspect the filter screen. A screen coated with sludge or debris should be cleaned with solvent or the entire OCV replaced. A screen showing thick black deposits indicates the vehicle has experienced extended oil change intervals or oil breakdown. OCV solenoid replacement cost on Toyota Camry 3.5L: $60 to $150 for the OCV assembly. Labor: 45 to 90 minutes (Bank 2 access is more restricted than Bank 1). Total at an independent shop: $150 to $350.
Step 3: VVT Actuator (Cam Phaser) Evaluation
When the OCV Tests Correctly and P0022 Persists
If the oil is fresh and correct, the OCV resistance tests within specification, the filter screen is clean, and P0022 continues to set, the VVT actuator gear on the Bank 2 intake cam may have mechanical wear. The actuator is the vane-type device that uses oil pressure chambers to physically advance or retard the cam. A worn actuator may respond correctly to oil pressure at low loads but fail to reach the commanded position at higher load conditions where the target advance angle is greatest. VVT actuator replacement on Toyota Camry 3.5L: requires removing the valve cover on Bank 2, which involves intake manifold work on the rear bank. Labor: 4 to 6 hours. Parts: $100 to $300 for the actuator. Total: $700 to $1,200 at an independent shop.
Step 4: Timing Chain Stretch Assessment
How Chain Wear Causes P0022 Over-Retarded
On higher-mileage Camry V6 engines (typically above 150,000 miles), timing chain wear can allow the cam to run in a persistently retarded position relative to the crankshaft. If multiple VVT correlation codes appear simultaneously (P0012 and P0022 together, or P0017 and P0022 together), timing chain stretch is more likely than a component failure on a single bank. A timing chain rattle at cold startup: a brief rattling or clattering from the front of the engine that diminishes as oil pressure builds: is a supporting symptom for chain wear.
| Cause | Code Clears With Oil Change? | OCV Resistance | OCV Screen Condition | Repair |
|---|---|---|---|---|
| Degraded or wrong viscosity oil | Yes | Normal | May be dirty | Oil change with correct synthetic |
| Clogged OCV filter screen | Temporarily | Normal | Clogged with debris | Clean or replace OCV |
| Failed OCV solenoid | No | Out of specification | May be clean | Replace OCV solenoid |
| Worn VVT actuator | No | Normal | Clean | Replace VVT actuator |
| Timing chain stretch | No | Normal | Clean | Timing chain replacement |
Frequently Asked Questions
What Does P0022 Mean on a Toyota Camry?
P0022 on a Toyota Camry V6 means the ECM has detected that the Bank 2 (rear bank) intake camshaft is more retarded than the commanded position. The VVT-i system cannot advance the cam to its target position. The most common causes are degraded engine oil preventing correct oil pressure to the VVT system, a clogged or failed oil control valve solenoid, or a worn VVT actuator on the rear bank.
Can I Drive a Toyota Camry With P0022?
The vehicle will typically drive and start normally with P0022, but with reduced performance efficiency as the VVT system is not optimizing valve timing. Driving is acceptable for a limited time while scheduling diagnosis. Ignoring the code for extended periods allows oil sludge (if that is the cause) to worsen and potentially damage VVT actuator components that are more expensive to repair.
How Much Does It Cost to Fix P0022 on a Toyota Camry?
An oil change and fresh synthetic: $60 to $90. OCV solenoid replacement: $150 to $350. VVT actuator replacement: $700 to $1,200. Timing chain replacement (if chain stretch is confirmed): $1,500 to $2,500. Always diagnose in the order listed: the oil change costs $60 and resolves a meaningful percentage of P0022 cases.
Why Does P0022 Come Back After an Oil Change on My Toyota Camry?
If P0022 returns within 200 to 300 miles of a fresh, correct-specification oil change, the code is not caused by oil quality alone. The OCV solenoid or VVT actuator is the next suspect. Have the OCV resistance tested and the filter screen inspected.
The Bottom Line
P0022 on the Toyota Camry 3.5L has the same cost-effective diagnostic sequence as all VVT codes: oil condition first, OCV solenoid second, actuator third. The oil change costs $60 to $90 and resolves the code in a significant percentage of cases, particularly on vehicles where oil changes have been delayed. When the code persists after fresh oil, the OCV filter screen inspection and resistance test are the next steps: and these too are inexpensive relative to the actuator and chain repairs that come after them in the diagnostic sequence.