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To change the Oxygen sensor B1 S2 on a Lexus IS300, first, locate the sensor, which is usually positioned after the catalytic converter on the driver's side of the vehicle. Disconnect the battery to ensure safety, then unplug the old sensor's electrical connector and use a wrench or an oxygen sensor socket to unscrew it. Install the new sensor by threading it in and tightening it securely, then reconnect the electrical connector and the battery. Finally, clear any diagnostic trouble codes and start the engine to ensure proper operation.

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6d ago

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