Manifold Absolute Pressure Sensor: Removal

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

Fig 1: Removing Collector Cover
Courtesy of SUBARU OF AMERICA, INC.
Disconnect the connector from the manifold absolute pressure sensor (A), and remove the filter assembly (B) from the intake manifold.

Fig 2: Identifying Pressure Sensor And Filter Assembly
Courtesy of SUBARU OF AMERICA, INC.
Remove the manifold absolute pressure sensor from intake manifold.