Engine-CodesNissan – P2138 2011 Nissan Sentra

P2138 2011 Nissan Sentra Code - Accelerator Pedal Position Sensor Circuit Range/Performance

Quick Answer

The P2138 code on a 2011 Nissan Sentra indicates a problem with the Accelerator Pedal Position Sensor Circuit Range/Performance. Common causes include Faulty Accelerator Pedal Position Sensor, Wiring issues or a poor connection in the sensor circuit, Corrosion or damage to the sensor components. Severity is High - diagnose this code as soon as possible. Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.

What it means
P2138 2011 Nissan Sentra indicates Accelerator Pedal Position Sensor Circuit Range/Performance.
Common causes
Common causes include Faulty Accelerator Pedal Position Sensor, Wiring issues or a poor connection in the sensor circuit, Corrosion or damage to the sensor components.
Severity
High - diagnose this code as soon as possible.
Can I drive?
Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
Table of contents Created and updated by William Orellana on Sep 11, 2024
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Code P2138 2011 Nissan Sentra Description

The P2138 code on a 2011 Nissan Sentra indicates a problem with the Accelerator Pedal Position Sensor Circuit Range/Performance. This sensor is responsible for communicating the position of the accelerator pedal to the engine control module (ECM) so that the appropriate amount of fuel can be delivered to the engine for optimal performance. When this sensor malfunctions, it can lead to a variety of issues that affect the vehicle's drivability.

OBDII Code P2138 2011 Nissan Sentra - Accelerator Pedal Position Sensor Circuit Range/Performance
P2138 2011 Nissan Sentra Code - Accelerator Pedal Position Sensor Circuit Range/Performance

Common Causes of P2138 2011 Nissan Sentra

  1. Faulty Accelerator Pedal Position Sensor
  2. Wiring issues or a poor connection in the sensor circuit
  3. Corrosion or damage to the sensor components
  4. ECM software or hardware malfunction
  5. Environmental factors such as moisture or debris affecting the sensor

Symptoms of P2138 2011 Nissan Sentra

  1. Loss of power or acceleration
  2. Rough idling or engine misfires
  3. Stalling or difficulty starting the vehicle
  4. Check engine light illuminated
  5. Reduced fuel efficiency

How to Fix P2138 2011 Nissan Sentra

  1. Diagnose the issue by using a diagnostic scanner to read the code and test the accelerator pedal position sensor.
  2. Inspect the wiring and connections associated with the sensor for any damage or corrosion.
  3. Replace the accelerator pedal position sensor if it is found to be faulty.
  4. Clear the fault codes and reset the ECM to ensure the issue has been resolved.
  5. Test drive the vehicle to ensure that the symptoms associated with the P2138 code have been eliminated.

Cost to Fix P2138 2011 Nissan Sentra

The cost of repairing a P2138 code on a 2011 Nissan Sentra can vary depending on the specific cause of the issue. On average, the cost of replacing an accelerator pedal position sensor can range from $100 to $250, including parts and labor. Additional costs may be incurred if there are wiring issues or other components that need to be replaced. It is advisable to consult with a professional mechanic to get an accurate estimate based on the specific circumstances of your vehicle. Keep in mind that labor rates can vary based on location and the type of repair shop you visit.

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About the author: William Orellana is a Master Mechanic and Mechanical Engineer with over 30 years of experience diagnosing and repairing vehicles. Learn more about his background.

Frequently Asked Questions about P2138 2011 Nissan Sentra Code

1. What are the common symptoms of OBDII code P2138 in a 2011 Nissan Sentra?

The common symptoms of OBDII code P2138 in a 2011 Nissan Sentra include reduced engine power, sudden acceleration surges, and the vehicle going into limp mode.

2. What causes the OBDII code P2138 in a 2011 Nissan Sentra?

The code P2138 in a 2011 Nissan Sentra is typically triggered by issues with the accelerator pedal position sensor or the throttle position sensor, wiring problems, or a faulty electronic control module (ECM).

3. How can I diagnose the OBDII code P2138 in my 2011 Nissan Sentra?

Diagnosing the OBDII code P2138 involves using a diagnostic scanner to retrieve the trouble codes, testing the accelerator pedal position sensor and throttle position sensor for proper functioning, and checking the wiring for any damage or loose connections.

4. Can I drive my 2011 Nissan Sentra with the OBDII code P2138 active?

It is not recommended to drive your 2011 Nissan Sentra with the OBDII code P2138 active, as it can lead to unsafe driving conditions due to potential loss of power or acceleration issues.

5. How can I repair the OBDII code P2138 in my 2011 Nissan Sentra?

Repairing the OBDII code P2138 in a 2011 Nissan Sentra may involve replacing the accelerator pedal position sensor or throttle position sensor, repairing any damaged wiring, or reprogramming the electronic control module (ECM).

6. Will resetting the OBDII code P2138 in my 2011 Nissan Sentra fix the issue permanently?

Resetting the OBDII code P2138 may temporarily turn off the check engine light, but if the underlying issue causing the code is not addressed, it is likely to reoccur.

7. Is it safe to continue driving my 2011 Nissan Sentra if the OBDII code P2138 comes on intermittently?

It is not recommended to continue driving your 2011 Nissan Sentra if the OBDII code P2138 comes on intermittently, as it indicates a potential issue with the accelerator pedal position sensor that can affect vehicle performance.

8. Can a DIY enthusiast repair the OBDII code P2138 in a 2011 Nissan Sentra?

While some basic troubleshooting steps can be done by a DIY enthusiast, repairing the OBDII code P2138 in a 2011 Nissan Sentra may require specialized tools and knowledge, so it is advisable to seek professional help.

9. How much does it cost to repair the OBDII code P2138 in a 2011 Nissan Sentra?

The cost to repair the OBDII code P2138 in a 2011 Nissan Sentra can vary depending on the exact cause of the issue, but it may range from a few hundred to over a thousand dollars, including parts and labor.

10. Can a faulty accelerator pedal position sensor cause other issues besides triggering the OBDII code P2138 in a 2011 Nissan Sentra?

Yes, a faulty accelerator pedal position sensor can cause other issues in a 2011 Nissan Sentra, such as poor fuel efficiency, rough idling, and problems with the transmission shifting smoothly.

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