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Since the O2 sensor is located on the exhaust manifold, when its cold, it may be difficult to remove. Start and run engine for a minute or two, but be careful not to burn yourself. from underneath, disconnect the electrical connector from the sensor. Unscrewe the sensor from exhaust manifold. they do sell a special socket for this job. If you are using the old sensor, make sure you use anti-seize on the threads whereas a new one should already have it. Install and tighten securely. Reconnect electrical connector. Test drive and make sure no trouble codes set.

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13y ago

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