Heated Oxygen Sensor (Ho2S) Removal/Installation: AWD

Courtesy of MAZDA MOTORS CORP.

1. Disconnect the negative battery terminal. (See NEGATIVE BATTERY TERMINAL DISCONNECTION/CONNECTION .)
2. Lift up the vehicle.
3. Remove the floor under cover (LH). (See FLOOR UNDER COVER REMOVAL/INSTALLATION .)
4. Disconnect the HO2S connector.
   Fig 1: Heated Oxygen Sensor, Connector, Clip And Nut With Torque Specification (AWD)

   Courtesy of MAZDA MOTORS CORP.
5. Remove the nut.
6. Remove the clip A from the bracket.
7. Remove the clip B from the body.
8. Remove the HO2S using the SST.
   Fig 2: Heated Oxygen Sensor With Torque Specification (AWD)

   Courtesy of MAZDA MOTORS CORP.
9. Install in the reverse order of removal.