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To replace the O2 sensors on a 2001 Toyota Corolla, first, ensure the engine is cool and disconnect the negative battery terminal for safety. Locate the O2 sensors, which are typically found on the exhaust manifold (upstream) and the exhaust pipe (downstream). Use a wrench or O2 sensor socket to unscrew the old sensors, then install the new ones by threading them in and tightening securely. Reconnect the battery terminal and reset the engine light if necessary.

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AnswerBot

1mo ago

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