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Engine-Codes – Nissan – P2122 2008 Nissan Maxima

P2122 2008 Nissan Maxima Code - Accelerator Pedal Position Sensor Circuit Range/Performance

Quick Answer

The P2122 code for a 2008 Nissan Maxima refers to an issue with the Accelerator Pedal Position Sensor Circuit Range/Performance. Common causes include Faulty accelerator pedal position sensor, Damaged wiring harness, Poor electrical connection. 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
P2122 2008 Nissan Maxima indicates Accelerator Pedal Position Sensor Circuit Range/Performance.
Common causes
Common causes include Faulty accelerator pedal position sensor, Damaged wiring harness, Poor electrical connection.
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 11, 2024
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Code P2122 2008 Nissan Maxima Description

The P2122 code for a 2008 Nissan Maxima refers to an issue with the Accelerator Pedal Position Sensor Circuit Range/Performance. This code is triggered when the Engine Control Module (ECM) detects that the voltage signal from the accelerator pedal position sensor is not within the expected range. The accelerator pedal position sensor is responsible for sending the ECM information about the position of the accelerator pedal, which is crucial for determining the amount of fuel to inject into the engine for optimal performance.

OBDII Code P2122 2008 Nissan Maxima - Accelerator Pedal Position Sensor Circuit Range/Performance
P2122 2008 Nissan Maxima Code - Accelerator Pedal Position Sensor Circuit Range/Performance

Common Causes of P2122 2008 Nissan Maxima

  1. Faulty accelerator pedal position sensor
  2. Damaged wiring harness
  3. Poor electrical connection
  4. ECM malfunction
  5. Corrosion or moisture in the sensor or wiring

Symptoms of P2122 2008 Nissan Maxima

  1. Reduced power and acceleration
  2. Hesitation during acceleration
  3. Rough idling
  4. Stalling
  5. Check Engine Light illuminated on the dashboard

How to Fix P2122 2008 Nissan Maxima

  1. Perform a thorough inspection of the accelerator pedal position sensor and wiring harness for any visible damage or corrosion.
  2. Use a multimeter to test the voltage output of the sensor and ensure it is within the manufacturer's specified range.
  3. Check the electrical connections for looseness or corrosion and clean or replace as needed.
  4. If the sensor is determined to be faulty, replace it with a new one following the manufacturer's guidelines.
  5. Clear the diagnostic trouble codes from the ECM and test drive the vehicle to ensure the issue has been resolved.

Cost to Fix P2122 2008 Nissan Maxima

The typical repair costs for addressing a P2122 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. Keep in mind that diagnosis time and labor rates can vary, so it's advisable to check with local auto repair shops for a more accurate estimate based on your location and vehicle specifics.

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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 P2122 2008 Nissan Maxima Code

1. What does the OBDII code P2122 mean for a 2008 Nissan Maxima?

The code P2122 indicates a potential issue with the accelerator pedal position sensor circuit, specifically relating to range/performance.

2. What are the common symptoms of OBDII code P2122 in a 2008 Nissan Maxima?

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

3. What are the possible causes of OBDII code P2122 in a 2008 Nissan Maxima?

Potential causes include a faulty accelerator pedal position sensor, damaged wiring or connectors in the sensor circuit, or issues with the engine control module (ECM).

4. How can I diagnose the OBDII code P2122 in my 2008 Nissan Maxima?

Diagnosis typically involves using a scan tool to read the code, checking the sensor's voltage output, inspecting the wiring and connectors for damage, and testing the ECM if necessary.

5. Can I still drive my 2008 Nissan Maxima with OBDII code P2122?

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

6. How can I repair OBDII code P2122 in a 2008 Nissan Maxima?

Repair options may include replacing the accelerator pedal position sensor, repairing or replacing damaged wiring or connectors, or reprogramming the ECM, depending on the root cause of the issue.

7. Is it possible to reset the OBDII code P2122 in a 2008 Nissan Maxima?

While clearing the code may temporarily turn off the check engine light, it is important to diagnose and address the underlying issue to prevent the code from reoccurring.

8. How much does it typically cost to fix OBDII code P2122 in a 2008 Nissan Maxima?

The cost of repairs can vary depending on the specific cause of the issue, but it is recommended to consult with a professional mechanic for an accurate diagnosis and cost estimate.

9. Can a DIY enthusiast fix OBDII code P2122 in a 2008 Nissan Maxima?

Depending on your mechanical skills and access to tools, some DIY enthusiasts may be able to address simpler causes of the code, such as replacing the accelerator pedal position sensor. However, more complex issues may require professional assistance.

10. How can I prevent OBDII code P2122 from appearing in my 2008 Nissan Maxima?

Regular maintenance, including checking and cleaning the accelerator pedal position sensor, inspecting wiring for damage, and promptly addressing any related issues, can help prevent the recurrence of this trouble code.

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