Throttle position sensor - what is it? How it works? Where is the TPS sensor located?


The throttle position sensor is an auxiliary element of the engine of every car, as well as other vehicles. Do you want to know how it works? Remember that its breakdowns lead to serious problems with the operation of the vehicle. Diagnosing a problem with a resistance sensor is easy. On the road, you yourself diagnose this problem. The car does not respond to gas? Do you feel that fuel is not getting to the engine? Be sure to check the throttle position sensor.

How does the throttle position sensor work?

Learn how the throttle position sensor works. Thanks to this, you will be able to solve any problems with your car faster. The throttle sensor, contrary to its appearance, is a small device. During operation, it measures the throttle position angle and transmits it directly to the engine controller. Thanks to this, the vehicle software calculates the appropriate dose of fuel required for the efficient operation of all engine components. The sensor uses an angular position potentiometer, which is converted into a voltage signal.

Where is the TPS sensor located?

The vehicle motion sensor is located directly on the throttle body in 99% of vehicles. It is located on the throttle axis opposite the spring that resists when you press the accelerator pedal. Finding it is very easy, so you can replace the broken item yourself.

Throttle Position Sensor Diagnosis - Step by Step

Want to check if your car's throttle position sensor is working properly? Follow a few tips. The diagnostic process consists of a few simple steps.

  1. Visual assessment of the sensor condition;
  2. Checking plug connections and electrical cables;
  3. TPS sensor resistance measurement.

You can easily do all these steps yourself. Remember you need an ohmmeter for diagnosis. Only with the help of this device it is possible to make accurate measurements of the resistance of a closed or open throttle.

Symptoms of TPS Sensor Damage?

There can be many signs of a sensor malfunction. Here are some of the most common signs of a bad throttle sensor:

  • fluctuations in idle speed;
  • lack of response to the accelerator pedal;
  • Difficulty starting the engine;
  • excessive fuel consumption while driving.

Causes of failure of the throttle opening sensor

The reasons for the failure of the throttle position sensor are not always clear. Malfunction of this component may be caused by damaged wires or excessive wear of the potentiometer. Have you noticed changes in your car's engine performance? Are you betting on throttle sensor failure? Here are some possible faults:

  • excessive wear of the slider and thrust track;
  • short circuit in the mains;
  • water ingress on the sensor or the throttle itself;
  • damaged electrical plug;
  • faded plugs.

How much is a throttle potentiometer? Dear failure?

A damaged engine speed sensor cannot be repaired. If it is found damaged, be sure to replace it with a new one. Parts can be found at automotive wholesalers and online auto parts stores. Throttle voltage sensor prices range from 20 to 50 euros. Interestingly, some car models require the entire throttle body to be replaced.

Remember that efficient drive operation is an important issue. If your vehicle is not running properly, be sure to run a Throttle Position Sensor Diagnostic. So you will avoid many problems along the way.

Home » Blog » Machine operation » Throttle position sensor - what is it? How it works? Where is the TPS sensor located?

Add a comment