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Accelerator Pedal Position Sensor

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Accelerator Pedal Position Sensor - Direct Fit, Sold individually
0 Reviews
Vehicle Info Required to Guarantee Fit
$61.62
Product Details
Notes : With pedal padWarranty : 1-year Replacement unlimited-mileage warrantyQuantity Sold : Sold individuallyProp 65 Warning :

Warning SymbolWARNING: This product can expose you to chemicals including Phthalates, which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.

Accelerator Pedal Position Sensor - Direct Fit, Sold individually
0 Reviews
Vehicle Info Required to Guarantee Fit
$9.83
Product Details
Warranty : 1-year Replacement unlimited-mileage warrantyQuantity Sold : Sold individuallyProp 65 Warning :

Warning SymbolWARNING: This product can expose you to chemicals including Phthalates, which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.

Accelerator Pedal Position Sensor - Direct Fit, Sold individually
0 Reviews
Vehicle Info Required to Guarantee Fit
$71.86
Product Details
Notes : With pedal assemblyWarranty : 1-year Replacement unlimited-mileage warrantyQuantity Sold : Sold individuallyProp 65 Warning :

Warning SymbolWARNING: This product can expose you to chemicals including Phthalates, which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.

Accelerator Pedal Position Sensor - Direct Fit, Sold individually
0 Reviews
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$2.70
Product Details
Notes : For adjustable pedalWarranty : 1-year Replacement unlimited-mileage warrantyQuantity Sold : Sold individuallyProp 65 Warning :

Warning SymbolWARNING: This product can expose you to chemicals including Phthalates, which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.

Accelerator Pedal Position Sensor - Direct Fit, Sold individually
0 Reviews
Vehicle Info Required to Guarantee Fit
$36.44
Product Details
Warranty : 1-year Replacement unlimited-mileage warrantyQuantity Sold : Sold individuallyProp 65 Warning :

Warning SymbolWARNING: This product can expose you to chemicals including Phthalates, which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.

Accelerator Pedal Position Sensor - Direct Fit, Sold individually
0 Reviews
Vehicle Info Required to Guarantee Fit
$34.27
Product Details
Notes : With pedal assembly; Floor mountedWarranty : 1-year Replacement unlimited-mileage warrantyQuantity Sold : Sold individuallyProp 65 Warning :

Warning SymbolWARNING: This product can expose you to chemicals including Phthalates, which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.

Accelerator Pedal Position Sensor - Direct Fit, Sold individually
0 Reviews
Vehicle Info Required to Guarantee Fit
$35.96
Product Details
Notes : With pedal assembly; Floor mountedWarranty : 1-year Replacement unlimited-mileage warrantyQuantity Sold : Sold individuallyProp 65 Warning :

Warning SymbolWARNING: This product can expose you to chemicals including Phthalates, which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.

Accelerator Pedal Position Sensor - Direct Fit, Sold individually
0 Reviews
Vehicle Info Required to Guarantee Fit
$43.75
Product Details
Notes : With pedal assembly; Floor mountedWarranty : 1-year Replacement unlimited-mileage warrantyQuantity Sold : Sold individuallyProp 65 Warning :

Warning SymbolWARNING: This product can expose you to chemicals including Phthalates, which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.

Accelerator Pedal Position Sensor - Direct Fit, Sold individually
0 Reviews
Vehicle Info Required to Guarantee Fit
$17.56
Product Details
Warranty : 1-year Replacement unlimited-mileage warrantyQuantity Sold : Sold individuallyProp 65 Warning :

Warning SymbolWARNING: This product can expose you to chemicals including Phthalates, which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.

Accelerator Pedal Position Sensor - Direct Fit, Sold individually
0 Reviews
Vehicle Info Required to Guarantee Fit
$28.97
Product Details
Warranty : 1-year Replacement unlimited-mileage warrantyQuantity Sold : Sold individuallyProp 65 Warning :

Warning SymbolWARNING: This product can expose you to chemicals including Phthalates, which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.

APS105 Accelerator Pedal Position Sensor - Direct Fit, Sold individually
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$45.04
Product Details
Warranty : 3-year or 36,000-mile Standard limited warrantyAnticipated Ship Out Time : Same day - 1 business dayQuantity Sold : Sold individually
APS106 Accelerator Pedal Position Sensor - Direct Fit, Sold individually
0 Reviews
Vehicle Info Required to Guarantee Fit
$47.02
Product Details
Warranty : 3-year or 36,000-mile Standard limited warrantyAnticipated Ship Out Time : Same day - 1 business dayQuantity Sold : Sold individually
APS118 Accelerator Pedal Position Sensor - Direct Fit, Sold individually
0 Reviews
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$113.96
Product Details
Warranty : 3-year or 36,000-mile Standard limited warrantyAnticipated Ship Out Time : Same day - 1 business dayQuantity Sold : Sold individually
APS148 Accelerator Pedal Position Sensor - Direct Fit, Sold individually
0 Reviews
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$108.03
Product Details
Warranty : 3-year or 36,000-mile Standard limited warrantyAnticipated Ship Out Time : Same day - 1 business dayQuantity Sold : Sold individually
APS172 Accelerator Pedal Position Sensor - Direct Fit, Sold individually
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$116.20
Product Details
Warranty : 3-year or 36,000-mile Standard limited warrantyAnticipated Ship Out Time : Same day - 1 business dayQuantity Sold : Sold individually
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Accelerator Pedal Position Sensor Makes

Accelerator Pedal Position Sensor Guides

Accelerator Pedal Position Sensor Buyer’s Guide

Summary

  • The accelerator pedal position sensor regulates the fuel that goes to the engine based on how hard you step on the pedal. It tracks the position of the accelerator pedal and sends it to the engine control unit. In comparison, the nearby throttle position sensor checks the position of the throttle valve.
  • Symptoms of a bad accelerator pedal position sensor include illuminated Check Engine Light, faster engine idling speed, no response to stepping on the accelerator pedal, and the vehicle entering safe mode.
  • Common accelerator pedal position sensor problems include damaged or loose cables and connectors, insufficient voltage and ground supply, and faulty electronic evaluation unit.
  • On CarParts.com, an accelerator pedal position sensor can go for anywhere between $3 and $724. You can buy the component on its own or as an assembly.
  • When selecting a replacement accelerator pedal position sensor, consider its compatibility with your car and its warranty. Buy a complete assembly whenever you can afford it

The accelerator pedal position sensor regulates the fuel that goes to the engine based on how hard you step on the pedal. Thanks to the accurate positional data from this electronic device, your car’s engine control unit (ECU) releases the correct amount of fuel into the combustion chamber.

A bad or failing accelerator pedal position sensor can lead to engine jerking, stalling, and uncontrolled acceleration. You, therefore, want the best replacement part for it.

This guide will discuss the basics of the acceleration pedal position sensor, including how it runs and the symptoms if it ever goes bad. It will also help you distinguish this sensor from the throttle position sensor.

What is an accelerator pedal position sensor?

This sensor is part of the electronic throttle control system with intelligence (ETCSi). Found on the throttle body, it tracks the position of the accelerator pedal and sends the data back to the engine control unit.

When you want to speed up your car, you step on the accelerator pedal. The sensor checks the pedal’s new position, converts it into an electronic signal, and transmits it to the engine computer. Upon getting the signal, the computer opens the throttle body to increase the flow of fuel to the engine.

Once the need for increased engine load diminishes, you lighten the pressure applied by your foot on the pedal. As the accelerator pedal moves back, the sensor updates the engine computer on the pedal’s new position. The computer closes the throttle body, reducing the fuel flow.

Where is the accelerator pedal position sensor?

The accelerator pedal position sensor sits on the floorboard. Its position puts it right next to the car’s firewall. The heat produced by a running engine can eventually affect or damage the sensor.

What’s the difference between the accelerator pedal position sensor and the throttle position sensor?

The accelerator pedal position sensor shares its throttle body home with a similar device. Called the throttle position sensor (TPS), it checks the position of the throttle valve and the rate at which the valve opens.

Both sensors contain the same number of components and contribute to the engine’s performance. However, they cover distinct parts.

Stepping on the accelerator pedal opens the butterfly valve that covers the throttle. The throttle position sensor measures the angle of the open valve and sends the information back to the powertrain control module.

While the accelerator pedal position sensor regulates fuel flow to the engine, the throttle position sensor controls airflow. The engine control unit uses data sent by the TPS to check if the throttle valve is open or closed. It adjusts the amount of air going to the engine to achieve the most efficient fuel-to-air mixture.

Bad accelerator pedal position sensor symptoms

Some symptoms of a bad or failing accelerator pedal position sensor are:

  • The Check Engine Light on the dashboard lights up.
  • The engine idles at a faster speed than normal.
  • Stepping on the accelerator pedal doesn’t produce a response from the engine.
  • The vehicle enters a safe mode to ensure it can make it back home.

Common accelerator pedal position sensor problems

The accelerator pedal position sensor can come to grief in several ways. The likeliest reasons for its failure include:

  • The sensor’s cables or connectors got damaged or loosened, affecting its connection to the engine computer.
  • Insufficient voltage and ground supply to run properly, leading to reduced performance.
  • Its electronic evaluation unit developed an issue and sent the wrong data to the engine computer.

Diagnosing a bad or failing sensor

When you encounter any of the symptoms of a faulty accelerator pedal position sensor, bring your affected car to the nearest, trustworthy auto repair shop. Drivers with plenty of experience in DIY car repair can try to troubleshoot their vehicles. 

Anytime the Check Engine Light activates, plug the OBD-II scanner into the connector port. Check the diagnostic trouble code logged by the engine’s computer module.

OBD-II codes associated with the accelerator pedal position sensor include:

  • P2135 (Throttle/Pedal Position Sensor/Switch A / B Voltage Correlation)
  • P0220 (Throttle/Pedal Position Sensor/Switch Circuit "B" Malfunction)

Examine the accelerator pedal sensor, its electrical connections, and cables. Look for any visible sign of damage to the sensor or its wiring.

If you have an oscilloscope and multimeter, you can test the sensor for internal flaws. This job requires at least two people.

What is the cost of a replacement accelerator pedal position sensor?

The price tag of a new sensor depends on factors like the year, make, and model of your car, the device’s brand, and the number of parts included.

On CarParts.com, an accelerator pedal position sensor can go for anywhere between $3 and $724. You can buy the component on its own or as an assembly.

Selecting the best accelerator pedal position sensor

Having trouble picking an accelerator pedal position sensor from the various offerings found at any car parts store? Just keep the following tips in mind.

Compatibility

Make sure the replacement part enjoys compatibility with your car. You don’t want to spend a significant sum on a replacement accelerator pedal position sensor, only to find out that it won’t fit in your vehicle.

Online auto parts shops like CarParts.com have a filter bar to help you quickly find replacement parts guaranteed to fit your car. Just enter your vehicle’s year, make, and model into the bar.

Individual parts versus complete assembly

An accelerator pedal position sensor contains a stator and a rotor. The stator itself uses an excitation coil, receiver coils, and an electronic evaluation unit.

If your budget can handle it, buy a complete assembly. Replacing the entire sensor costs more but reduces the risk of complications caused by incompatible parts.

An accelerator pedal position sensor displays high sensitivity to voltage. Individual parts that don’t work together correctly can cause electrical shorts and wear out the sensor faster.

The parts of a complete assembly got designed and assembled by the same manufacturer. This assures parts compatibility and performance.

Further, not all accelerator pedal position sensors work in the same way. It’s risky to use a part for one sensor model to repair a different model since the slightest difference in voltage can lead to a short.

Warranties

Always get a replacement part with a warranty. An accelerator pedal position sensor is a complex device with many electrical parts. It’s vulnerable to breaking down and difficult to repair, so a warranty will help ease your mind and wallet.

Standard warranties for these sensors last for three years of 36,000 miles. Read the fine print thoroughly and look for technicalities that can disqualify the coverage.
 

Helpful Automotive Resources

P0120 Code: Throttle/Pedal Position Sensor “A” Circuit
September 16, 2020
P0120 Code: Throttle/Pedal Position Sensor “A” CircuitYour vehicle’s throttle position (TP) sensors and accelerator pedal position (APP) sensors are crucial to engine operation. Just like any other engine sensor, these sensors may fail due to several reasons. P0120 is an error code that indicates a potential fault with one of your vehicle’s TP/APP sensors or the
P0121 Code: Throttle/Pedal Position Sensor “A” Circuit Range/Performance Problem
June 25, 2020
P0121 Code: Throttle/Pedal Position Sensor “A” Circuit Range/Performance ProblemThe error code P0121 may indicate an issue related to your engine’s throttle position sensor. Like other throttle position sensor-related codes, this could lead to serious problems and can result in your vehicle not starting at all. Let’s take a look at code P0121 and its other potential consequences.
P2135 Code: Throttle/Pedal Position Sensor/Switch A/B Voltage Correlation
July 16, 2020
P2135 Code: Throttle/Pedal Position Sensor/Switch A/B Voltage CorrelationYou’re stopped at a stoplight, waiting for the light to turn green. Once the light changes, you suddenly notice that no matter how hard you step on the gas, engine power is significantly reduced. 
P2138 Code: Throttle/Pedal Position Sensor/Switch D/E Voltage Correlation
August 18, 2020
P2138 Code: Throttle/Pedal Position Sensor/Switch D/E Voltage CorrelationIf your check engine light is on and the code P2138 shows up on the scan tool when you connect it to your car’s OBD port, you’ll want to know what it means and its possible causes. This short guide will help you figure out its causes, symptoms, and other
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