LH Side

Remove the collector cover.
1. Remove the clip (A).
2. Hold the shaded area (B) by hand and carefully pull the RH side (C) upward.
3. Hold the shaded area (D) by hand and carefully pull the LH side (E) upward.
Fig 1: Pulling Collector Cover (RH) And (LH) Side Upward
Courtesy of SUBARU OF AMERICA, INC.
Disconnect the ground cable from battery.
Remove the intercooler. Ref. to INTAKE (INDUCTION) (H4DOTC)>Intercooler>REMOVAL .
Remove the throttle body. Ref. to FUEL INJECTION (FUEL SYSTEMS) (H4DOTC)>Throttle Body>REMOVAL .
Remove the bolts securing the engine harness.

Fig 2: Locating Engine Harness Bolt
Courtesy of SUBARU OF AMERICA, INC.
Disconnect the connector (A) from the knock sensor, and remove the knock sensor from the cylinder block.

Fig 3: Locating Knock Sensor Bolt

Courtesy of SUBARU OF AMERICA, INC.