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Home >> Mercury >> 1989 >> Tracer 2D Hatchback, Standard >> Repair and Diagnosis (Single Page) >> Engine Performance >> Theory and Operation >> Theory/Operation - 4-CYL >> Computerized Engine Controls >> Input Devices (Fuel Injection) >> Throttle Position Sensor

Throttle Position Sensor

Sensor consists of a lever attached coaxially to the throttle valve, a guide cam driven by the lever and movable idle and power contacts. Sensor detects idle and high load conditions based on throttle valve opening. Sensor sends signal to ECA when throttle valve is at idle or deceleration (1.5 degrees) and during heavy load condition (70 degrees or more).