Heated Oxygen Sensor (HO2S) Repair Procedures

Inspection

1. 1
   Turn the ignition off.
2. 2
   Disconnect the HO2S connector.
3. 3
   Measure the resistance between terminals 1 and 2 of the HO2S.
4. 4
   Make sure the resistance is within specification.

   Specification: Refer to "Specifications"

Removal

1. 1
   Turn the ignition switch OFF and disconnect the negative (-) battery cable.
2. 2
   Disconnect the connector (A) and remove the sensor (B).

   Note that the SST (part number: 09392-1Y100 or 09392-2H100) is useful when removing the heated oxygen sensor.

   [Bank 1/Sensor 1]

   

   

   [Bank 1/Sensor 2]

   

   

   [Bank 2 / Sensor 1]

   

   

   [Bank 2 / Sensor 2]

   

   

Installation

Install the component with the specified torque. Be careful not to drop the component, as internal damage may occur. If dropped, inspect it before use.

DO NOT use cleaner, spray, or lubricant on the sensor element or connector, as oil components may cause sensor malfunction. The sensor and its wiring may be damaged if they contact the exhaust system (exhaust manifold, catalytic converter, etc.).

1. To install, reverse the removal procedure. Heated oxygen sensor: 35.3 ~ 45 N·m