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Home >> Chevrolet >> 2004 >> Classic >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System (Introduction) - 2.2L (L61) >> Repair Instructions >> Heated Oxygen Sensor (HO2S) Replacement (Bank 2) >> Notes
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Heated Oxygen Sensor (HO2S) Replacement (Bank 2): Notes

NOTE: The Heated Oxygen Sensors each use a permanently attached pigtail and connector. This pigtail should not be removed from the heated oxygen sensor. Damage or removal of the pigtail or connector could affect proper operation of the heated oxygen sensor.
IMPORTANT: Take care when handling the rear heated oxygen sensor (HO2S 2). The in-line connector and louvered end must be kept free of grease, dirt or other contaminants. Avoid using cleaning solvents of any type. DO NOT drop or roughly handle the HO2S 2.