How long does the throttle/accelerator pedal position sensor last?
Auto repair

How long does the throttle/accelerator pedal position sensor last?

09.11.2022 /

The gas/accelerator pedal position sensor detects the position of the accelerator pedal. This information is then transmitted to the vehicle's computer, the engine control module (ECM). From there, the data is then sent from the computer to the throttle valve - the valve opens to let more air into the intake. This tells the engine that you are accelerating. The pedal position sensor is only available on vehicles with Electronic Throttle Control (ETC).

The accelerator pedal position sensor works using a Hall effect sensor that detects pedal position using a magnetic field. It produces a change in charge based on a change in pedal position. Information is sent to the ECM to tell it how hard you press the gas pedal.

Over time, the accelerator pedal position sensor can fail due to a malfunction in the sensor's electronic system or a wiring problem in the sensor or other parts to which the sensor is connected, such as the pedal itself. Because you use the sensor every day, these problems can build up over time or occur at the same time. If the sensor is faulty, the ECM will not have the correct information about how hard you are pressing the pedal. This may cause a stop or your vehicle may have difficulty accelerating.

Once the sensor fails completely, your car will go into emergency mode. Limp mode means the engine will barely be able to move and will only run at very low RPMs. This means you can safely get home without destroying your car.

Given that the accelerator pedal position sensor may fail over time. Here are a few symptoms you should be aware of in order to be prepared:

  • The Check Engine light comes on
  • The car will not move very fast and will run at low speeds.
  • Your car keeps stalling
  • You have problems with acceleration
  • The car goes into emergency mode

Don't put off replacing this part because your car could be damaged. Have a licensed mechanic replace a faulty throttle/accelerator pedal position sensor to rule out further problems with your vehicle.

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