Camshaft Timing Over-Advanced or System Performance (Bank 2)
Code P0024 indicates that the engine control module (ECM) has detected that the camshaft timing on bank 2 is over-advanced or the variable valve timing (VVT) system is not performing correctly. This typically occurs when the camshaft position sensor, VVT solenoid, or oil control valve is malfunctioning, or when oil flow to the VVT actuator is restricted due to low oil level, dirty oil, or a clogged oil passage. The ECM compares the actual camshaft position to the desired position and sets this code if the deviation exceeds a threshold.
01. Most Common Causes
- Faulty camshaft position sensor on bank 2
- Malfunctioning VVT solenoid or oil control valve
- Low engine oil level or dirty oil
- Worn timing chain or tensioner
- Clogged oil passages to VVT actuator
02. Symptoms You Will Notice
- Check Engine Light illuminated
- Rough idle or engine misfire
- Reduced engine power and fuel economy
- Engine hesitation or stalling
03. Step-by-Step Diagnosis
Step 1: Scan for additional codes and freeze frame data.
Step 2: Check engine oil level and condition; change if dirty or low.
Step 3: Inspect wiring and connectors to camshaft position sensor and VVT solenoid on bank 2.
Step 4: Test camshaft position sensor and VVT solenoid resistance per manufacturer specs.
Step 5: Perform a VVT system mechanical check; inspect timing chain and tensioner for wear.
04. Commonly Affected Makes
05. Frequently Asked Questions
Is it safe to drive with this code?▼
It is not recommended to drive long distances as it can cause poor engine performance and potential damage to the timing components. Have it diagnosed promptly.
How much does it cost to fix?▼
Repair costs vary from $150 to $400 depending on the root cause. Replacing a VVT solenoid or sensor is on the lower end, while timing chain repairs can be more expensive.