Camshaft Position Sensor LH

Remove the collector cover.
Disconnect the ground cable from battery.

Fig 1: Disconnecting Ground Cable From Battery
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Remove the intake manifold. < Ref. to REMOVAL , Intake Manifold. >
Remove the camshaft position sensor LH.

Fig 2: Locating Camshaft Position Sensor Bolt
Courtesy of SUBARU OF AMERICA, INC.