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Home >> Lexus >> 1993 >> SC 300 Standard >> Repair and Diagnosis (Single Page) >> Engine Performance >> Theory and Operation >> Engine Controls - Theory & Operation >> Computerized Engine Controls >> Input Devices >> Oxygen Sensor
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Oxygen Sensor

Oxygen sensors are installed in the exhaust system and monitor oxygen content of exhaust gases. A signal is sent to the ECM and is used to determine fuel injection duration. Main oxygen sensors are equipped with a heater.

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