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 timing, leading to reduced engine performance, fuel economy, and potential engine damage.
01. Most Common Causes
- Faulty rocker arm actuator position sensor
- Wiring or connector issues (open, short, corrosion)
- Failed rocker arm actuator solenoid
- Engine control module (ECM) software or hardware problem
02. Symptoms You Will Notice
- Check Engine Light illuminated
- Rough idle or misfire
- Reduced engine power and fuel economy
- Engine hesitation or stalling
03. Step-by-Step Diagnosis
Step 1: Scan for codes and freeze frame data to confirm P267B and related codes.
Step 2: Visually inspect the rocker arm actuator sensor and wiring for damage, corrosion, or loose connections.
Step 3: Test the sensor's voltage and resistance per manufacturer specifications using a multimeter.
Step 4: Check the actuator solenoid operation with a scan tool or oscilloscope.
Step 5: If all else is fine, update ECM software or replace the ECM.
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 internal damage. Have it diagnosed promptly.
How much does it cost to fix?▼
Repair costs vary: sensor replacement $150-$300, wiring repair $100-$200, ECM replacement $500-$1000. Diagnostic fees are typically $100-$150.