What does P0024 mean?
Variable valve timing (VVT) uses engine oil pressure, controlled by a solenoid, to move the camshaft. This code covers the exhaust ("B") cam on bank 2.
The part is electrically connected, but it is not doing what the computer commanded.
Codes are a starting point. They tell you which test failed, not which part to replace. Check for other stored codes and fix those in a sensible order.
Symptoms
- Check engine light
- Rough idle
- Reduced power
- Poor fuel economy
- Rattle at start-up (with worn phasers)
Common causes
- Sticking or worn component
- Restricted passage or linkage
- Wiring with high resistance
- Low battery or charging voltage
- Low or dirty engine oil (very common)
- Failed VVT oil control solenoid
- Wiring problem
How to diagnose P0024
- Command the component with a scan tool and watch whether it responds.
- Check the component's actual movement or flow.
- Inspect wiring and voltage supply.
- Check the oil level and condition first. Low or sludgy oil causes many VVT codes.
- Command the solenoid with a scan tool and watch cam timing respond.
How to fix it
- Change the oil with the correct viscosity
- Replace the VVT solenoid
- Repair wiring
- Replace cam phaser / timing chain if worn
Estimated repair cost
Likely repairs for P0024 run from about $150 to $3,000, depending on the cause.
| Repair | Typical range (parts + labor) |
|---|---|
| Diagnostic fee (scan + testing) | $100 - $200 |
| VVT oil control solenoid | $150 - $450 |
| Cam phaser / timing chain job | $1,000 - $3,000 |
These are rough US estimates for an independent shop in 2026, based on typical parts prices and standard labor times. Dealers, big trucks, luxury brands and high-cost areas often run higher. They are not quotes. Use the repair cost estimator to adjust for your vehicle.
How serious is P0024?
Moderate severity
Usually drivable short term. Keep the oil full and correct.
P0024 FAQ
What does P0024 mean?
P0024 stands for ""B" Camshaft Position - Timing Over-Advanced or System Performance (Bank 2)". Variable valve timing (VVT) uses engine oil pressure, controlled by a solenoid, to move the camshaft.
Can I drive with a P0024 code?
Usually drivable short term. Keep the oil full and correct.
How much does it cost to fix P0024?
It depends on the cause. The likely repairs for P0024 range from about $150 to $3,000 at an independent shop in the US, plus a diagnostic fee of roughly $100-$200. These are rough estimates; dealer prices and some vehicles run higher.
What is the most common cause of P0024?
The most common causes are: sticking or worn component; restricted passage or linkage; wiring with high resistance.