P265E"B" Rocker Arm Actuator Position Sensor Circuit Intermittent/Erratic (Bank 1)
- Generic OBD-II code · Powertrain
- Turns on the check-engine light
- Matters for the ITP
- Can trigger limp mode
- How the car detects it
- Here the bank 1 position signal for actuator B is neither stuck low nor high; instead it jumps, flickers or briefly vanishes faster than the mechanism could physically move. The engine controller compares successive readings and flags P265E when the rate of change or the number of dropouts exceeds what a motor-driven lift mechanism can produce. Typical culprits are fretting corrosion on the terminals, a conductor broken inside its insulation that only opens under vibration, or electrical noise from nearby ignition wiring. CARB asks for such signal quality checks on valve lift inputs. No manufacturer documents P265E publicly. The fault may come and go with temperature and road surface; the lift controller can hunt or fall back to a fixed setting.
- What you may notice
- MIL on and off over several trips
- Surging or uneven power delivery
- Likely causes
- LikelyFretting corrosion on sensor B terminals
- PossibleConductor broken inside its insulation, opening under vibration
- RareInterference from ignition or other high-current wiring
- Inspection (ITP)
- Matters for the ITP. While the check-engine light is on, the car fails the emissions check.
- Repair
- Hard · Usually a job for a workshop.Typical cost: €60 – €1,200
- Related codes
Explanation from obdex (CC0), exactly as the app shows it. Guidance only; confirm with a workshop.