Heated Oxygen Sensor Replacement - Sensor 1

Fig 1: Heated Oxygen Sensor - Sensor 1

Courtesy of GENERAL MOTORS COMPANY

Callout	Component Name
Preliminary Procedure Disconnect the negative battery cable. Refer to Battery Negative Cable Disconnection and Connection .
1	Heated Oxygen Sensor 1 Fastener CAUTION: Refer to Fastener Caution . Procedure Disconnect the electrical connector. Release the retainer. Remove the heated oxygen sensor 1 with CH-6179 remover/installer and GE-611 wrench. Tighten 42 N.m (31 lb ft) Special Tools CH-6179 Oxygen Sensor Wrench Remover/Installer GE-611 Torque Wrench 3/8" For equivalent regional tools, refer to Special Tools (Diagnostic Tools) .

Callout

Component Name

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

Heated Oxygen Sensor 1 Fastener

CAUTION:

Procedure

Disconnect the electrical connector.
Release the retainer.
Remove the heated oxygen sensor 1 with CH-6179 remover/installer and GE-611 wrench.

Tighten
42 N.m (31 lb ft)

Special Tools

For equivalent regional tools, refer to Special Tools (Diagnostic Tools) .