How do you replace knock sensor on 1.6 liter ZM Mazda engine?

To replace the knock sensor on a 1.6-liter ZM Mazda engine, first, ensure the engine is cool and disconnect the negative battery terminal. Locate the knock sensor, typically found on the engine block or cylinder head, and remove any components obstructing access. Unscrew the sensor using a socket or wrench, then disconnect the electrical connector. Install the new sensor by reversing the removal process, ensuring a proper seal and reconnecting the battery.