Corvette V8-5.7L VIN G (1997)
Oxygen Sensor: Service and Repair
Heated Oxygen Sensor (Bank 2) Replacement
Sensor 1
CAUTIONS:
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The heated oxygen sensors each use a permanently attached pigtail and connector. Do not remove the pigtail from the heated oxygen sensor.
Damage or removal of the pigtail or the connector affects proper operation of the heated oxygen sensor.
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Handle the oxygen sensor carefully. Do not drop the oxygen sensor. Keep the in-line connector and the louvered end free of grease, dint, or other
contaminants.
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Do not use cleaning solvents of any type.
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Do not repair the wiring, the connector, or the terminals. Replace the oxygen sensor if the pigtail wiring, the terminals, or the connector is
damaged. Proper oxygen sensor operation requires an external air reference. This external air reference is obtained by way of the oxygen sensor
signal and heater wires. Any attempt to repair the wires, the connectors, or the terminals results in the obstruction of the air reference and degrades
the oxygen sensor performance.
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A dropped oxygen sensor is a bad oxygen Sensor.
REMOVAL PROCEDURE
IMPORTANT: The heated oxygen sensor may be difficult to remove when the engine temperature is below 48°C (120°F). Excessive force may
damage the threads in the exhaust manifold or exhaust pipe. It may be necessary to lower the exhaust system in order to gain sufficient access to a
HO2S and/or the connector. Refer to Engine Exhaust.
1. Raise the vehicle.
2. Disconnect the HO2S electrical connector.
3. Carefully back out the heated oxygen sensor.
INSTALLATION PROCEDURE
IMPORTANT: Use special anti-seize compound on the heated oxygen sensor threads. The compound consists of graphite suspended in fluid and
glass beads. The graphite burns away, but the glass beads remain, making the sensor easier to remove. New or service sensors already have the
compound applied to the threads. If you remove an oxygen sensor and if for any reason you must reinstall the same oxygen sensor, apply the anti-seize
