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Home >> Saab >> 1991 >> 900 SPG >> Repair and Diagnosis (Single Page) >> Engine Performance >> Theory and Operation >> Engine Controls - Theory & Operation >> Computerized Engine Controls >> Input Devices >> Oxygen Sensor

Oxygen Sensor

This sensor measures quantity of free oxygen in the exhaust gas. The fuel injection ECU uses a signal from this sensor to adjust fuel injection quantity. Sensor is threaded into the exhaust manifold.