The throttle position sensor is mounted onto the throttle body and measures the opening and closing movements of the throttle valve and these are transmitted to an engine control module, this information, as well as other measurements including; temperature, engine RPM and mass air flow (MAF), are used by the engine ...

What happens when throttle position sensor is bad?

When a TPS goes bad, then the car's throttle body won't function properly. It could either stay shut or it won't close properly which is a severe issue. ... When the throttle gets stuck in an open position than your vehicle will receive too much air and cause it to have a high or fluctuating idle.

What problems can a throttle position sensor cause?

What happens when the throttle position sensor goes bad? If your sensor goes bad, then the car's computer will receive inaccurate readings about the position of the accelerator pedal. This can cause your car to be sluggish, start jerking, have trouble shifting gears, or even stall in some cases.