Oil Temperature Sensor: Removal

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

Fig 1: Disconnecting Ground Cable From Battery
Courtesy of SUBARU OF AMERICA, INC.
Remove the air intake chamber. < Ref. to REMOVAL , Air Intake Chamber. >
Disconnect the connector from the oil temperature sensor.
Remove the oil temperature sensor.

Fig 2: Locating Oil Temperature Sensor Connector
Courtesy of SUBARU OF AMERICA, INC.