Your check engine light will be on and you will feel bucking or jerking while you are accelerating. You will also have an idle surging, sudden stalling of the engine, and a sudden surge in speed while driving on the highway.
A bad throttle sensor can cause several problems. Symptoms include rough idle, loss of power, and even power surges while driving. .
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.
A bad idle air control sensor or a bad throttle position sensor.
a bad throttle position sensor will cause: transmission shift issues, bucking, jerking, idle surging, engine cuts off, hesitation on take off, surge while cruising down highway. all or part of these symptoms will indicate a bad sensor. not all the time will check engine light be on!! sometime these symptoms will not set a problem code.
motor shuts off when put in gear sometimes
When Throttle Position sensor is bad when you step on pedal and it does not move, engine light is on!
what are the symptoms of bad tdc o2 sensor
The most classic symptom is erratic or rough idling.
crank sensor bad, MAF sensor bad, dirty throttle body, idle air control valve
Surging or stuttering at a particular pedal position such as "the sweet spot" when cursing.
A bad throttle sensor can cause engine jerking and rough running. A test of the computer codes should show if there seems to be a problem with the sensor.
loss of control over the air and heat