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To change the O2 sensor on a 2004 Mazda RX-8, first ensure the engine is cool and disconnect the negative battery terminal. Locate the O2 sensor, which is typically found on the exhaust manifold or downstream in the exhaust system. Use a wrench or O2 sensor socket to unscrew the old sensor, then install the new sensor by threading it in and tightening it securely. Finally, reconnect the battery and clear any diagnostic trouble codes if necessary.

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AnswerBot

3w ago

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