Skip the auto shop - Our mechanics make house calls
  1. Home
  2. Articles
  3. How Long Does a Throttle/Accelerator Pedal Position Sensor Last?

How Long Does a Throttle/Accelerator Pedal Position Sensor Last?

Throttle Position Sensor

The throttle/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 blade - a valve is opened to allow more air in the intake. This tells the engine that you are accelerating. The pedal position sensor is only in vehicles with an Electronic Throttle Control (ETC).

The accelerator pedal position sensor works by using a Hall Effect sensor that determines the location of the pedal by a magnetic field. It produces a change in the charge based on a change in the position of the pedal. The information is relayed to the ECM to let it know how hard you are pushing on the gas pedal.

Over time, the accelerator pedal position sensor can fail due a malfunction within the electronic system of the sensor, or a wiring issue in the sensor or other parts the sensor is connected to, such as the pedal itself. Since you use the sensor every day, these problems can eventually build up, or they can happen all at once. If the sensor fails, the ECM will not have the correct information about how much you are pressing on the pedal. This can lead to stalling, or your vehicle may have a hard time accelerating.

Once the sensor completely fails, your vehicle will go into a limp mode. Limp mode means the engine will barely be able to move and only run at very low RPMs. This is so you can make it home safely, without destroying your vehicle.

Given that the accelerator pedal position sensor can go bad and fail over time. Here are a few symptoms you should be aware of so you can be prepared:

  • The Check Engine Light comes on
  • The vehicle will not go very fast and will run at low RPMs
  • Your vehicle continuously stalls
  • You have problems accelerating
  • The vehicle goes into limp mode

Don’t delay in replacing this part because your vehicle may become inoperable. Have a certified mechanic replace the failing throttle/accelerator pedal position sensor to eliminate any further problems with your vehicle.

The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details
Icon-warranty_badge-02

Skip the repair shop, our top-rated mechanics come to you.

At your home or office

Choose from 600+ repair, maintenance & diagnostic services. Our top-rated mechanics bring all parts & tools to your location.

Fair & transparent pricing

See labor & parts costs upfront, so you can book with confidence.

12-month, 12,000-mile warranty

Our services are backed by a 12-month, 12,000-mile warranty for your peace of mind.

Get A Quote

Need Help With Your Car?

Our certified mobile mechanics make house calls in over 2,000 U.S. cities. Fast, free online quotes for your car repair.

GET A QUOTE

More related articles

How Long Does a Throttle Return Spring Last?
Not all vehicles on the road feature an electronic throttle control (ETC), which is also called drive-by-wire. For vehicles that don't offer this system, they have a throttle cable instead that...
P0121 OBD-II Trouble Code: TPS "A" Circuit Range Performance Problem
P0121 code definition Throttle Pedal Position Sensor/Switch (TPS) A Circuit Range Performance Problem...
How to Buy Fuel Treatments
Adding a fuel additive to your gas tank when you fill up is one way to clean vital engine parts of deposits, improve the performance of your engine,...


Related questions

Q: Spits and sputters in higher rpm

Hey there. You need to try and reset the point gap to .025 and then run the engine again. You should also get a spark tester and see how much power your coil is putting out. If it is not...

Q: My car runs poorly when the idle sensor is connected, without it the car runs fine

The throttle position sensor is designed to monitor the position of the throttle butterfly valve in relation to the throttle pedal position. If the engine runs rough when it is plugged in and runs fine when it is unplugged, then...

Q: Pulsing sound coming from engine of 98 buick century ?

Hello, thank you for writing in. The vehicle may be stalling once in gear for several reasons. To start, check the level and condition of your transmission fluid. Low or dirty fluid will cause issues with the pressure, and can...