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.
When Throttle Position sensor is bad when you step on pedal and it does not move, engine light is on!
A bad throttle sensor can cause several problems. Symptoms include rough idle, loss of power, and even power surges while driving. .
there is a throttle position sensor on the firewall side of the throttle body. unplug it, and see if the engine runs the same. if it runs the same then, yes you do have a bad throttle body, and if it does not run the same, i would suggest having the engine looked at to figure out what the problem is
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.
Maybe your throttle positioning sensor is bad.
The TPS (throttle position sensor) has gone bad on your throttle body.
A bad idle air control sensor or a bad throttle position sensor.
It tell's it when to shift ....depending on throttle position
The OBD code p1221 indicates a bad throttle position sensor. Sometimes cleaning the throttle body will clear this code. If that does not work the sensor will need to be replaced.
I just purchased the throttle sensor for a 2003 Buick rendezvous and was wondering if anyone could tell me where it located and how easy is it to put in.
loping idle. does not maintain idle, sometimes shuts engine off. do an ohm test.
The throttle position sensor is on the throttle shaft, on the throttle body.