Heated Oxygen Sensor Replacement - Sensor 2

Fig 1: Heated Oxygen Sensor - Sensor 2

Courtesy of GENERAL MOTORS COMPANY

Callout	Component Name
WARNING: In order to avoid being burned, do not service the exhaust system while it is still hot. Service the system when it is cool. Preliminary Procedure Raise and support the vehicle. Refer to Lifting and Jacking the Vehicle .
1	Heated Oxygen Sensor 2 CAUTION: Refer to Component Fastener Tightening Caution . Procedure Disconnect electrical connector. After replacement of the heated oxygen sensor, use a scan tool to speed up learn functions. Refer to K20 Engine Control Module: Programming and Setup . If reusing the heated oxygen sensor, coat the thread with assembly paste. Tighten 42 (31 lb ft) Special Tools EN-48259 Installer/Remover For equivalent regional tools, refer to Special Tools (Diagnostic Tools)

Callout

Component Name

WARNING: In order to avoid being burned, do not service the exhaust system while it is still hot. Service the system when it is cool.

Preliminary Procedure Raise and support the vehicle. Refer to Lifting and Jacking the Vehicle .

Heated Oxygen Sensor 2

CAUTION: Refer to Component Fastener Tightening Caution .

Procedure

Disconnect electrical connector.
After replacement of the heated oxygen sensor, use a scan tool to speed up learn functions. Refer to K20 Engine Control Module: Programming and Setup .
If reusing the heated oxygen sensor, coat the thread with assembly paste.

Tighten
42 (31 lb ft)
Special Tools
EN-48259 Installer/Remover
For equivalent regional tools, refer to Special Tools (Diagnostic Tools)