Removal & Installation (B3000)

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Disconnect the negative battery cable.
Raise and support the vehicle.
Disconnect the knock sensor harness connector. See Fig 1.
Remove the bolt and the knock sensor. See Fig 2.

Fig 1: Locating Knock Sensor Harness Connector - B3000

Courtesy of MAZDA MOTORS CORP.

Fig 2: Removing & Installing Knock Sensor - B3000

Courtesy of MAZDA MOTORS CORP.