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Home >> Jeep >> 1993 >> Grand Cherokee Base, 5.2 Y, AWD >> Repair and Diagnosis (Single Page) >> Engine Performance >> Theory and Operation >> Engine Controls - Theory & Operation - 5.2L >> Computerized Engine Controls >> Input Devices >> Throttle Position Sensor (TPS)

Throttle Position Sensor (TPS)

TPS is mounted on throttle body and monitors opening angle of throttle valve. Sensor varies its output voltage according to angle of throttle blade opening. PCM uses this information and other sensor inputs to adjust air/fuel ratio. If PCM senses Wide Open Throttle (WOT) position during cranking, it assumes engine is flooded and turns off fuel injectors until throttle is released.

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