OBD Guide

P266A

A Rocker Arm Actuator Position Sensor Circuit Bank 2

Severity
⚠️ Medium
Can you drive?
Yes, but get it checked soon
Approx. repair cost
$17–89 (est.)

Symptoms

  • Reduced engine power
  • Unstable engine idling
  • Deteriorating fuel economy
  • Check Engine Light Illuminates
  • Possible misfires

Causes

  • Malfunction of the rocker arm drive position sensor
  • Open or short circuit in sensor wiring
  • Poor contact in the sensor connector
  • Engine control unit (ECU) malfunction
  • Problems with the VVT system

How to Fix

  1. Check the sensor wiring and connectors for damage
  2. Checking the Rocker Arm Actuator Position Sensor to Specifications
  3. Replacing a faulty sensor
  4. Checking and repairing wiring or connectors
  5. Checking the operation of the VVT system

Related codes

Error P266A by Vehicle Brand