Barometric Pressure Sensor: Removal
WARNING: This page is about a different car, the 2003 GMC Sierra, 2003 GMC Cab & Chassis Sierra, 2003 Chevrolet Silverado, and 2003 Chevrolet Cab & Chassis Silverado. However, it is still accessible from the selected car via links, so may be relevant.
Turn off the ignition. Disconnect the Barometric Pressure (BARO) sensor electrical connector. See Fig 1. Bend the locking tab, located on the bracket, away from the sensor, just enough so that the sensor will pass. Pull the BARO sensor downward to remove it from the bracket.