Knock Sensor: Removal

Disconnect battery ground cable from battery ground terminal.

Fig 1: Disconnecting Battery Ground Cable From Battery Ground Terminal
Courtesy of SUBARU OF AMERICA, INC.
Remove intake manifold.
< Ref. to REMOVAL , Intake Manifold.>
Disconnect knock sensor connector.
Remove knock sensor from cylinder block.

Fig 2: Removing Knock Sensor From Cylinder Block
Courtesy of SUBARU OF AMERICA, INC.