Exhaust CMP Sensor

Disconnect the negative battery terminal. (See NEGATIVE BATTERY TERMINAL DISCONNECTION/CONNECTION .)
Remove the plug hole plate. (See PLUG HOLE PLATE REMOVAL/INSTALLATION [SKYACTIV-G 2.5T] .)
Remove the protector.

Courtesy of MAZDA MOTORS CORP.
Disconnect the exhaust CMP sensor connector.
Remove the bolt.

Fig 1: Exhaust CMP Sensor Bolt With Torque Specifications
Courtesy of MAZDA MOTORS CORP.
Remove the exhaust CMP sensor.
Install in the reverse order of removal.