Manifold Absolute Pressure Sensor: Removal

Disconnect the ground cable from battery.

Fig 1: Connecting/Disconnecting Battery Ground Terminal
Courtesy of SUBARU OF AMERICA, INC.
Disconnect the connector (A) from the manifold absolute pressure sensor, and remove the manifold absolute pressure sensor from intake manifold.

Fig 2: Identifying Manifold Absolute Pressure Sensor Connector
Courtesy of SUBARU OF AMERICA, INC.