Boost Pressure Sensor
WARNING: This page is about a different car, the 2008 Jeep Patriot and 2008 Jeep Compass. However, it is still accessible from the selected car via links, so may be relevant.
The boost pressure sensor (1) is integrated with the intake air temperature sensor, and mounted in the charge air hose below the intake manifold. The sensor allows the ECM to monitor air pressure within the intake manifold.