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Home >> BMW >> 1998 >> 323is Automatic >> Repair and Diagnosis (Single Page) >> Engine Performance >> Theory and Operation >> Engine Controls - Theory & Operation >> Computerized Engine Controls >> Input Devices >> Throttle Position (TP) Sensor
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Throttle Position (TP) Sensor

TP sensor is used in place of a throttle position switch and has contacts for idle and wide open throttle. The potentiometer is not adjustable since PCM determines idle speed ignition timing (idle speed switching point) on its own.