Engine-Codes.com
Engine-Codes – Nissan – P2138 2008 Nissan Maxima

P2138 2008 Nissan Maxima Code - Accelerator Pedal Position Sensor Circuit Range/Performance

Quick Answer

The P2138 diagnostic trouble code (DTC) for a 2008 Nissan Maxima indicates a problem with the Accelerator Pedal Position Sensor Circuit Range/Performance. Common causes include Faulty accelerator pedal position sensor, Wiring issues or loose connections in the accelerator pedal position sensor circuit, Corrosion or damage to the sensor or its connectors. 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 2008 Nissan Maxima indicates Accelerator Pedal Position Sensor Circuit Range/Performance.
Common causes
Common causes include Faulty accelerator pedal position sensor, Wiring issues or loose connections in the accelerator pedal position sensor circuit, Corrosion or damage to the sensor or its connectors.
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.
What is this?
Table of contents Created and updated by William Orellana on Sep 07, 2024
💬 Need more help? Ask Auto Expert for instant answers — it's free!
AutoCodes App

Fix Your Car Smarter

Try the New AutoCodes App!

Get complete OBDII diagnostics, repair solutions, and cost estimates, plus AI chat support on demand.

AutoCodes App on Google Play

Code P2138 2008 Nissan Maxima Description

The P2138 diagnostic trouble code (DTC) for a 2008 Nissan Maxima indicates a problem with the Accelerator Pedal Position Sensor Circuit Range/Performance. This code is typically triggered when the Engine Control Module (ECM) detects that the voltage signals from the accelerator pedal position sensor do not fall within the expected range. The accelerator pedal position sensor is responsible for providing feedback to the ECM regarding the position of the accelerator pedal, allowing the ECM to adjust fuel delivery and engine timing accordingly.

OBDII Code P2138 2008 Nissan Maxima - Accelerator Pedal Position Sensor Circuit Range/Performance
P2138 2008 Nissan Maxima Code - Accelerator Pedal Position Sensor Circuit Range/Performance

Common Causes of P2138 2008 Nissan Maxima

  1. Faulty accelerator pedal position sensor
  2. Wiring issues or loose connections in the accelerator pedal position sensor circuit
  3. Corrosion or damage to the sensor or its connectors
  4. Issues with the ECM

Symptoms of P2138 2008 Nissan Maxima

  1. Lack of acceleration
  2. Rough idling
  3. Stalling
  4. Difficulty starting
  5. Check Engine Light illuminated

How to Fix P2138 2008 Nissan Maxima

  1. Begin by diagnosing the issue using a scan tool to retrieve the specific trouble code and identify the root cause of the problem.
  2. Inspect the accelerator pedal position sensor and its wiring for any visible damage, corrosion, or loose connections. Repair or replace any damaged components.
  3. Clear the trouble code from the ECM memory using the scan tool and perform a test drive to verify that the issue has been resolved.
  4. If the problem persists, further diagnostics may be necessary to pinpoint the exact cause of the circuit range/performance issue.
  5. In some cases, recalibrating the accelerator pedal position sensor or reprogramming the ECM may be required to resolve the problem.

Cost to Fix P2138 2008 Nissan Maxima

The typical repair costs for addressing the P2138 code on a 2008 Nissan Maxima can range from $150 to $400, depending on the specific cause of the issue and the cost of parts and labor. It's important to note that diagnosis time and labor rates at auto repair shops can vary, so it's advisable to obtain quotes from several reputable shops in your area. Keep in mind that rates may be higher at dealerships or in metropolitan areas, while independent shops may offer more competitive pricing.

Need more information about the P2138 2008 Nissan Maxima code?

Need more information on how to fix the P2138 2008 Nissan Maxima code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the P2138 2008 Nissan Maxima code diagnosed by a professional: Find a repair shop in your area

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 2008 Nissan Maxima Code

1. What are the common symptoms of OBDII code P2138 on a 2008 Nissan Maxima?

- Common symptoms include reduced engine power, hesitation or stalling when accelerating, and the vehicle going into limp mode.

2. What does the OBDII code P2138 indicate on a 2008 Nissan Maxima?

- The code P2138 indicates a problem with the Accelerator Pedal Position Sensor circuit range or performance.

3. What are the possible causes of OBDII code P2138 on a 2008 Nissan Maxima?

- Possible causes include a faulty Accelerator Pedal Position Sensor, issues with the wiring or connectors related to the sensor, or a problem with the electronic throttle control system.

4. How can I diagnose the cause of OBDII code P2138 on my 2008 Nissan Maxima?

- You can use a diagnostic scanner to read the code and check for any related codes. Perform a visual inspection of the sensor and its wiring, and conduct tests to check the sensor's voltage and resistance.

5. Can I continue driving my 2008 Nissan Maxima with OBDII code P2138?

- It is not recommended to drive the vehicle with code P2138, as it can lead to unsafe driving conditions and potential further damage to the engine.

6. How can I repair OBDII code P2138 on a 2008 Nissan Maxima?

- Repair options include replacing the Accelerator Pedal Position Sensor, repairing or replacing damaged wiring or connectors, and resetting the trouble codes.

7. Will resetting the trouble codes fix OBDII code P2138 on a 2008 Nissan Maxima?

- Resetting the trouble codes may temporarily clear the code, but if the underlying issue is not addressed, the code is likely to return.

8. How much does it cost to repair OBDII code P2138 on a 2008 Nissan Maxima?

- The cost of repair can vary depending on the cause of the issue, but it may range from $100 to $300 for parts and labor.

9. Can a DIY enthusiast fix OBDII code P2138 on a 2008 Nissan Maxima?

- Depending on your skill level and access to tools, DIY enthusiasts may be able to replace the Accelerator Pedal Position Sensor or check and repair wiring issues themselves.

10. How long does it take to repair OBDII code P2138 on a 2008 Nissan Maxima?

- The repair time can vary depending on the exact cause of the issue and your experience level, but it may take anywhere from 1 to 3 hours to complete the repair.

Discuss the causes and fixes for P2138 2008 Nissan Maxima OBDII Code

Submit a New Comment

Code P2138 2008 Nissan Maxima comments

No comments found for this page.