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Throttle Position Sensor (TPS) 

 

The Throttle Position Sensor identifies the position of the throttle plate to the 

engine computer. The signal voltage will be approximately 0.2-1.0 volt at idle and up to 4.6 

volts at wide open throttle. 

 

Location: The TPS is located within or on the side of the throttle body or carburetor. 

 

Failure Symptoms: Malfunction Indicator Light (MIL) illumination, failed emission test, 

engine hesitation on light acceleration, engine hesitation during a cruise, automatic 

transmission shifting condition