Intake CMP Sensor

WARNING: This page is about a different car, the 2018 Mazda CX-5. However, it is still accessible from the selected car via links, so may be relevant.

Disconnect the negative battery terminal. (See NEGATIVE BATTERY TERMINAL DISCONNECTION/CONNECTION .)
Remove the plug hole plate. (See Plug Hole Plate Removal/Installation .)
Disconnect the intake CMP sensor connector.
Remove the intake CMP sensor.

Fig 1: Intake CMP Sensor And Bolt With Torque Specification
Courtesy of MAZDA MOTORS CORP.
Install in the reverse order of removal.