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Home >> Subaru >> 1999 >> Legacy Outback, 2.5, Automatic >> Repair and Diagnosis (Single Page) >> Engine Performance >> Theory and Operation >> Engine Controls - Theory & Operation >> Computerized Engine Controls >> Input Devices >> Throttle Position (TP) Sensor

Throttle Position (TP) Sensor

TP sensor consists of a potentiometer and an idle switch. TP sensor sends PCM a signal corresponding to throttle valve position. Idle switch signal occurs when throttle is near idle position. PCM uses these signals to control air/fuel ratio during acceleration, deceleration, and idle.

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