Heated Oxygen Sensor Replacement - Sensor 1

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. WARNING: Avoid contact with HOT components. Wear safety glasses and protective gloves to avoid personal injury. Preliminary Procedure Disconnect the battery negative cable. Battery Negative Cable Disconnection and Connection
1	Heated Oxygen Sensor CAUTION: Refer to Component Fastener Tightening Caution . CAUTION: Refer to Heated Oxygen and Oxygen Sensor Caution . CAUTION: Refer to Heated Oxygen Sensor Resistance Learn Reset Caution . CAUTION: The use of excessive force may damage the threads in the exhaust manifold/pipe. Procedure Disconnect the electrical connector. If replacing, perform the HO2S heater resistance learned values reset. HO2S Heater Resistance Learned Values Reset Tighten 42 N.m (31 lb ft) Special Tools EN-6179 Heated Oxygen Sensor Remover/Installer Equivalent regional tools: Special Tools (Repair Tools)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.

WARNING:

Avoid contact with HOT components. Wear safety glasses and protective gloves to avoid personal injury.

Preliminary Procedure Disconnect the battery negative cable. Battery Negative Cable Disconnection and Connection

Heated Oxygen Sensor

CAUTION:

CAUTION:

CAUTION:

CAUTION:

The use of excessive force may damage the threads in the exhaust manifold/pipe.

Procedure

Disconnect the electrical connector.
If replacing, perform the HO2S heater resistance learned values reset. HO2S Heater Resistance Learned Values Reset

Tighten
42 N.m (31 lb ft)
Special Tools
EN-6179 Heated Oxygen Sensor Remover/Installer
Equivalent regional tools: Special Tools (Repair Tools)Special Tools (Diagnostic Tools)