Knock Sensor (KS) Removal/Installation: Notes

WARNING: This page is about a different car, the 2020 Mazda CX-30. 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 (US) .)
Remove the plug hole plate. (See PLUG HOLE PLATE REMOVAL/INSTALLATION .)
Remove the intake manifold. (See INTAKE-AIR SYSTEM REMOVAL/INSTALLATION .)
Disconnect the KS connector.
Remove the KS. (See KS Installation Note .)

Fig 1: Knock Sensor Components With Torque Specification
Courtesy of MAZDA MOTORS CORP.
Install in the reverse order of removal.