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Home >> Pontiac >> 1981 >> Phoenix Base, 4D Hatchback, 2.8L Eng VIN X, Standard Trans >> Repair and Diagnosis (Single Page) >> Engine Performance >> Engine Control Systems >> Computer Command Control >> Operation >> Data Sensors >> Vehicle Speed Sensor (VSS)
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Vehicle Speed Sensor (VSS)

This sensor is mounted behind the speedometer in instrument cluster. It provides a series of 8 volt pulses to ECM to indicate vehicle speed. The VSS is not used on all vehicles.

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