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Exhaust CMP Sensor

Disconnect the negative battery terminal. (Refer to NEGATIVE BATTERY TERMINAL DISCONNECTION/CONNECTION .)
Remove the plug hole plate. (Refer to PLUG HOLE PLATE REMOVAL/INSTALLATION .)
Disconnect the exhaust CMP sensor connector.
Remove the bolt.

Fig 1: Disconnecting Exhaust CMP Sensor Connector
Courtesy of MAZDA MOTORS CORP.
Remove the exhaust CMP sensor.
Install in the reverse order of removal.