P264E"A" 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
- P264E covers a feedback signal from the position sensor of actuator A, bank 1, that drops out or jumps for short moments rather than staying low or high. Loose terminals, a cracked wire flexing with engine movement, or interference on an unshielded line are the usual reasons, and the fault may vanish when the vehicle is parked. CARB requires lift system inputs to be monitored for such rationality and continuity problems. No manufacturer documents P264E publicly. Because the lift controller depends on a steady reading, jumps can make it hunt or fall back to a fixed lift, which drivers notice as surging or uneven idle. Wiggle tests on the harness help locate it.
- What you may notice
- MIL on, sometimes clearing by itself
- Surging or hesitation
- Uneven idle
- Likely causes
- LikelyLoose or spread terminal in the sensor connector
- PossibleWire cracked inside the insulation by engine movement
- RareElectrical interference on the signal line
- 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 – €600
- Related codes
Explanation from obdex (CC0), exactly as the app shows it. Guidance only; confirm with a workshop.