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On a 2000 Toyota Avalon, Bank 1 Sensor 1 (O2 sensor) is located on the exhaust manifold on the driver's side of the engine. It is positioned before the catalytic converter and is responsible for monitoring the oxygen levels in the exhaust gases. To access it, you may need to lift the vehicle and work from underneath or reach it from the top of the engine compartment. Make sure to disconnect the battery before attempting any repairs.

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1mo ago

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