Removal and Installation

Disconnect the negative battery cable. See BATTERY DISCONNECT .
Raise and support the vehicle. See LIFTING .

Fig 1: Removing Connector From Mounting Bracket
Courtesy of MAZDA MOTORS CORP.
NOTE:
- The knock sensor (KS) is located on the RH side of the cylinder block.
Disconnect the KS electrical connector and remove the connector from the mounting bracket.
Remove the bolt and the KS.
To install, reverse the removal procedure.