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Home >> Volvo >> 2000 >> S40 >> Repair and Diagnosis >> Engine Performance >> Theory and Operation >> Engine Controls - Theory & Operation >> Computerized Engine Controls >> Input Devices >> Heated Oxygen Sensor

Heated Oxygen Sensor

Heated Oxygen (HO2S) sensor generates an electrical signal proportional to air/fuel mixture. ECM uses this information to adjust amount of injected fuel into cylinders.