Knock Sensor: Removal

WARNING: This page is about a different variant/trim than selected.

Remove the collector cover.
NOTE: Follow these procedures for removal of the collector cover.
1. Lift up the rear side holding two positions (A).
2. Lift up the front side holding two positions (B) while moving it in the forward direction of the vehicle.
  
  Fig 1: Locating Front And Rear Side Holding Position
  Courtesy of SUBARU OF AMERICA, INC.
Disconnect the ground cable from battery.
Remove the intake manifold. Ref. to REMOVAL , Intake Manifold.
Disconnect the knock sensor connector.
Remove the knock sensor from cylinder block.

Fig 2: Identifying Knock Sensor Of Cylinder Block
Courtesy of SUBARU OF AMERICA, INC.