Removal Procedure

Fig 1: Identifying Engine Wiring Harness Electrical Connector

Courtesy of GENERAL MOTORS CORP.

Raise and support the vehicle. Refer to Lifting and Jacking the Vehicle .
Disconnect the engine wiring harness electrical connector (1) from the exhaust differential pressure sensor.
Fig 2: Identifying Exhaust Differential Pressure Sensor
Courtesy of GENERAL MOTORS CORP.

Reposition the exhaust differential pressure sensor pipe assembly hose clamps (1).
Remove the exhaust differential pressure sensor pipe assembly hoses from the sensor.
Remove the exhaust differential pressure sensor bracket bolt (2).
Remove the exhaust differential pressure sensor.