Symptoms of a failing throttle position sensor might include:
Irregular idle
Fast idle speed
Engine is slow to return to idle speed
Hesitation when depressing the accelerator
General poor engine performance
The ECM, engine control module, uses the throttle position sensor to know when the throttle has moved. If the ECM doesn't know accurately where the throttle is it won't know how much fuel to deliver when.
A bad throttle sensor can cause several problems. Symptoms include rough idle, loss of power, and even power surges while driving. .
The throttle position sensor is in the throttle body.
A failing throttle position sensor will cause idling problems when the car is warm. The failing sensor can also cause the car to stall when idling.
The function of a throttle position sensor is to monitor the position of the throttle in an internal combustion engine.
A bad throttle position sensor, on your 1991 Saturn, will cause the engine to run rough when it is idling. The engine will run normally at higher speeds.
The throttle position sensor is located on the throttle body at the end of the throttle shaft.
The throttle position sensor is located on the throttle plate.
The throttle position sensor is on the throttle body.
The throttle position sensor is on the throttle body, opposite of where the cables attach.
Generally speaking the throttle position sensor is on the throttle body.
The throttle position sensor is on the throttle body on the opposite side of the cables.
The throttle position sensor is on the throttle body.