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 Procedures Raise the vehicle. Refer to Lifting and Jacking the Vehicle . Disconnect heated oxygen sensor 2 wiring harness plug.
1	Heated Oxygen Sensor 2 Procedure After replacement of the heated oxygen sensor, use a scan tool to speed up the learn procedure. Refer to K20 Engine Control Module: Programming and Setup . CAUTION: Refer to Fastener Caution . Tighten 42 N.m (31 lb ft) Special Tools EN-6179 Heated Oxygen Sensor Remover/Installer For equivalent regional tools, refer to Special Tools (Diagnostic Tools) , Special Tools (Removal and Installation) .

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 Procedures

Heated Oxygen Sensor 2
Procedure
After replacement of the heated oxygen sensor, use a scan tool to speed up the learn procedure. Refer to K20 Engine Control Module: Programming and Setup .

CAUTION:

Tighten
42 N.m (31 lb ft)
Special Tools
EN-6179 Heated Oxygen Sensor Remover/Installer
For equivalent regional tools, refer to Special Tools (Diagnostic Tools) , Special Tools (Removal and Installation) .