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Heated Oxygen Sensor (HO2S) 2 Replacement: Notes

WARNING: This page is about a different car, the 2005 GMC Canyon and 2005 Chevrolet Colorado. However, it is still accessible from the selected car via links, so may be relevant.

Tools Required 

J 39194-B  Heated Oxygen Sensor Wrench. See Special Tools .

NOTE: When replacing the HO2S perform a code clear with a scan tool, regardless of whether or not a DTC is set. Performing a code clear will reset the HO2S resistance learned value. Failure to perform a code clear may result in an HO2S failure.
NOTE: Refer to Heated Oxygen and Oxygen Sensor Notice in Cautions and Notices.
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