What it means
The position sensor that confirms the B rocker arm switching state on bank 2 returns no usable signal.
At a glance
- Usually lights the check-engine light
How it works
The B rocker arm actuator on bank 2 changes the valve lift mode, and its position sensor reports whether the mechanism reached the commanded state. P267A sets when the controller cannot obtain a usable position signal from that specific sensor circuit, which can limit engine performance.
Common causes
Most likely first.
- Open sensor element
- Corroded sensor connector
Symptoms
- Check-engine light
- Reduced engine power or performance
How to diagnose it
- Read freeze-frame data and check for related rocker arm actuator or engine performance codes, noting the engine conditions when the signal failed.
- Identify bank 2 and actuator B using the vehicle's service information, then inspect that position sensor's connector and wiring for looseness, oil, corrosion, or damage.
- Check the sensor supply, ground, and signal circuit at the bank 2 B actuator using the wiring diagram and manufacturer's specification.
- With a scan tool, observe the B actuator position signal while commanding the available valve lift modes, if the vehicle supports that test.
- If the circuit is intact but the signal remains unusable, test the sensor and inspect the B rocker arm actuator mechanism on bank 2 for binding or failure.
Common fixes
- Reconnect or clean the bank 2 B rocker arm position sensor connector.
- Repair damaged wiring or a poor ground in the bank 2 B sensor circuit.
- Replace the failed B actuator position sensor on bank 2.
- Repair a sticking or failed bank 2 B rocker arm actuator if the sensor and circuit check out.
Can I keep driving?
Reduced power or performance may make merging and overtaking less predictable, so avoid hard acceleration and high-speed trips. If the engine runs poorly or loses power significantly, stop somewhere safe and have the fault diagnosed.
A code shows where the control module detected a fault, not always which part failed. Check the causes in order and confirm with a test before replacing parts. Have several codes? Check them together
This is a generic code: it means the same on every make. The car’s maker may add more detail in its own service information.