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Knock Sensor: Installation

  1. Install the knock sensor to the cylinder block.
    NOTE: The portion of the knock sensor cord that is pulled out must be positioned at a 60° angle relative to the engine rear.

    Tightening torque: 24 N.m (2.4 kgf-m, 17.7 ft-lb) 

    Fig 1: Identifying Knock Sensor Cord Angle
    G06648304Courtesy of SUBARU OF AMERICA, INC.
  2. Connect the knock sensor connector.
    Fig 2: Locating Knock Sensor Connector
    G06648302Courtesy of SUBARU OF AMERICA, INC.
  3. Install the air intake boot assembly. Ref. to INSTALLATION , Air Intake Boot.
  4. Connect the ground cable to battery.
    Fig 3: Disconnecting Ground Cable From Battery
    G06648487Courtesy of SUBARU OF AMERICA, INC.