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Home >> Mazda >> 2011 >> CX-7 s Touring, 2.3 L, AWD >> Repair and Diagnosis >> Engine Performance >> Engine Control Systems >> Engine Control System [L3 With TC] >> Knock Sensor (KS) Removal/Installation
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Knock Sensor (KS) Removal/Installation

CAUTION:
  • Be careful not to impact the sensor.
  • Verify that there is no debris between the sensor and the cylinder block before installing.
  1. Disconnect the negative battery cable.
  2. Remove the intake manifold. (See INTAKE-AIR SYSTEM REMOVAL/INSTALLATION .)
  3. Remove the KS attachment bolt to remove the KS.
  4. Install in the reverse order of removal.

    Tightening torque 

    16-24 N.m {1.7-2.4 kgf.m, 12-17 ft.lbf} 

    Fig 1: Locating Knock Sensor
    G04859848Courtesy of MAZDA MOTORS CORP.