P0024
UniversalExhaust Camshaft Position Timing - Over-Advanced (Bank 2)
Medium SeverityThe engine's computer (PCM) has detected that the exhaust camshaft on Bank 2 is positioned too far in advance of its commanded position, indicating an issue with the variable valve timing system. This condition can lead to noticeable reductions in engine power, decreased fuel efficiency, and potentially a rough idle or stalling.
⚠️ Before You Begin (Safety First)
Always ensure the vehicle is turned off and the engine is cool before working on any components. Disconnect the battery's negative terminal to prevent accidental electrical shorts or injury. Wear appropriate personal protective equipment, such as gloves and eye protection.
Common Symptoms
- Check Engine Light illuminated
- Reduced engine power or acceleration
- Decreased fuel economy
- Rough idle or stalling
- Engine hesitation during acceleration
- Difficulty starting the engine
Common Causes
- Faulty exhaust camshaft position actuator (VVT/VCT solenoid) on Bank 2
- Low or dirty engine oil interfering with VVT operation
- Faulty camshaft position sensor (less common than actuator)
- Wiring or connector issues to the camshaft position actuator or sensor
- Timing chain/belt issues (stretched or jumped timing)
- Internal engine mechanical problems (very rare)
Frequently reported on: Toyota Camry (2007-2011), Honda Accord (2003-2007), Ford F-150 (2004-2010), Chevrolet Equinox (2010-2017)
Diagnostic Steps
- Check engine oil level and condition; change oil if dirty or low.
- Inspect wiring and connectors to the exhaust camshaft position actuator and sensor on Bank 2 for damage or corrosion.
- Locate the exhaust camshaft position actuator (VVT/VCT solenoid) on Bank 2 and test its electrical resistance and operation.
- If the actuator is faulty, carefully replace the exhaust camshaft position actuator on Bank 2.
- Clear the DTCs and perform a test drive to ensure the code does not return.
👨🔧 When to Call a Professional
If you perform the repair and the code returns, or if the symptoms include significant engine knocking or misfires, it's best to stop driving the vehicle immediately and consult a professional mechanic. These symptoms could indicate more serious internal engine issues.
Commonly Asked Questions
What does Bank 2 mean for the P0024 code?
Bank 2 refers to the cylinder bank on your engine that does not contain cylinder number one. This is relevant for V-shaped engines.
Can I ignore the P0024 code?
No, it is not recommended to ignore this code as it can lead to reduced fuel economy, decreased engine performance, and potentially more serious engine damage over time.
Is dirty engine oil a common cause of P0024?
Yes, the variable valve timing system relies on clean engine oil at proper pressure. Sludgy or low oil can prevent the camshaft actuator from operating correctly.
What's the difference between a camshaft position sensor and an actuator/solenoid?
The camshaft position sensor monitors the camshaft's position, while the actuator (often called a VVT or VCT solenoid) is the component that physically adjusts the camshaft timing using oil pressure.
Should I replace both Bank 1 and Bank 2 components if I get P0024 on Bank 2?
Typically, you only need to address the faulty component on Bank 2. However, if the issue is due to dirty oil, it's wise to change the engine oil and filter for both banks.