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Home >> Lexus >> 1996 >> LX 450 >> Repair and Diagnosis (Single Page) >> Engine Performance >> Theory and Operation >> Engine Controls - Theory & Operation >> Computerized Engine Controls >> Input Devices >> Heated Oxygen Sensor (HO2S)
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Heated Oxygen Sensor (HO2S)

HO2S monitors exhaust gas oxygen content and generates a voltage signal that the ECM uses to determine fuel injection duration. HO2S is heated by an electric heater element.

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