P267B: B Rocker Arm Actuator Position Sensor Circuit Range/Performance Bank 2
The P267B code indicates that the Engine Control Module (ECM) has detected a range or performance issue in the rocker arm actuator position sensor circuit for Bank 2. This sensor monitors the position of the rocker arm actuator, which controls variable valve timing or cylinder deactivation. A fault can cause incorrect valve operation, leading to reduced engine performance, increased emissions, and potential engine damage if not addressed.
1. Most Common Causes
- Faulty rocker arm actuator position sensor
- Wiring or connector issues in the sensor circuit
- Failed rocker arm actuator
- ECM software or hardware malfunction
2. Symptoms You Will Notice
- Check Engine Light illuminated
- Rough idle or misfire
- Reduced engine power or fuel economy
- Engine hesitation or stalling
3. Step-by-Step Diagnosis
Step 1: Use an OBD2 scanner to confirm the code and check for additional codes.
Step 2: Visually inspect the wiring and connectors for Bank 2 rocker arm actuator sensor for damage or corrosion.
Step 3: Test the sensor's resistance and voltage with a multimeter and compare to manufacturer specifications.
Step 4: If sensor and wiring are okay, test the actuator itself for proper operation.
Step 5: If all components pass, update or reprogram the ECM as per manufacturer service bulletins.
4. Frequently Asked Questions
Is it safe to drive with this code?▼
It is not recommended to drive long distances with this code as it can cause engine performance issues and potential damage. Have it diagnosed promptly.
How much does it cost to fix?▼
Repair costs typically range from $150 to $400, including parts and labor, depending on the root cause and vehicle make.
5. Commonly Affected Makes
This is a generic OBD2 code, potentially applicable to any manufacturer using this diagnostic standard.