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Knock Sensor: Removal

  1. Disconnect the ground cable from battery. < Ref. to BATTERY , NOTE, Note. >
    NOTE: For the 12 volt engine restart battery, disconnect the ground terminal from 12V engine restart battery sensor.
  2. Remove the collector cover.
    1. Carefully pull up the front of collector cover at two positions (A).
    2. Carefully pull up the rear of collector cover at two positions (B) while moving it backward.
      NOTE: Be careful not to contact the fuel delivery tube when moving the collector cover rearward.
      Fig 1: Removing Collector Cover
      G09486016Courtesy of SUBARU OF AMERICA, INC.
  3. Remove the throttle body. < Ref. to REMOVAL , Throttle Body. >
  4. Disconnect the connector (A) from the knock sensor, and remove the knock sensor from the cylinder block.
    Fig 2: Locating Knock Sensor Bolt
    G09487129Courtesy of SUBARU OF AMERICA, INC.
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