Section 110 (Ignition System (Service Information)): Sensor-Knock: Removal: 1.6L

WARNING: This page is about a different car, the 2006 Chrysler PT Cruiser. However, it is still accessible from the selected car via links, so may be relevant.

Fig 1: Knock Sensor Wiring Connector - 1.6L

Courtesy of DAIMLERCHRYSLER CORP.

Remove air cleaner assembly cover.
Disconnect the negative battery cable.
Disconnect the electrical connector for the sensor. See Fig 1 and Fig 2.

Fig 2: Locating Knock Sensor - 1.6L
Courtesy of DAIMLERCHRYSLER CORP.
Remove knock sensor. The knock sensor is located under the intake manifold. See Fig 2.