FixVault

Heated Oxygen Sensor Replacement - Sensor 1

GM3657226
Callout Component Name

Preliminary Procedures

  1. Battery Negative Cable Disconnection and Connection
  2. Engine Sight Shield Replacement
1 Wiring Harness Clip
2 Heated Oxygen Sensor
Procedure 
  1. Disconnect the electrical connector.
  2. If replacing the sensor, 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 ToolsSpecial Tools (Diagnostic Tools)