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Home >> Audi >> 1991 >> 100 Base >> Repair and Diagnosis (Single Page) >> Engine Performance >> Theory and Operation >> Engine Controls - Theory & Operation >> Computerized Engine Controls >> Input Devices >> Oxygen Sensor

Oxygen Sensor

Oxygen (O2) sensor is a heat-type sensor which measures oxygen content of exhaust gases. Control unit uses data from O2 sensor to determine air fuel mixture. Sensor is positioned in exhaust system, ahead of catalytic converter.