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Home >> Saab >> 1995 >> 9000 CS, Standard >> Repair and Diagnosis >> External Pages >> Different car >> Section 7 (Engine Controls - Theory & Operation) >> Computerized Engine Controls >> Input Devices >> Heated Oxygen Sensor (HO2S)

Heated Oxygen Sensor (HO2S)

WARNING: This page is about a different car, the 1996 Saab 9000. However, it is still accessible from the selected car via links, so may be relevant.

This sensor measures quantity of free oxygen in the exhaust gas. The ECM uses a signal from this sensor to adjust fuel mixture. This sensor is located in the exhaust manifold and after TWC. The electric heating element provides improved cold engine driveability.

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