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Home >> Ford >> 2000 >> Contour SE, 2.0 3, Standard >> Repair and Diagnosis >> External Pages >> Different car >> Section 2089 (Engine Controls - Description And Operation (Except Diesel & Hybrid)) >> Catalyst and Exhaust Systems >> Underbody Catalyst >> Heated Oxygen Sensor (HO2S)

Heated Oxygen Sensor (HO2S)

WARNING: This page does not describe the selected car, but rather 31 other vehicles, including the 2008 Mercury Sable, 2008 Mercury Mountaineer, 2008 Mercury Milan, 2008 Mercury Mariner, and 2008 Mercury Grand Marquis. However, it is still accessible from the selected car via links, so may be relevant.

The HO2Ss provide the PCM with information related to the oxygen content of the exhaust gas. For additional information on the HO2S, refer to ENGINE CONTROL COMPONENTS .

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