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Engine-Codes – Nissan – P1226 2008 Nissan Maxima

P1226 2008 Nissan Maxima Code - Closed Throttle Position Learning Performance Problem

Quick Answer

The P1226 diagnostic trouble code (DTC) for a 2008 Nissan Maxima indicates a Closed Throttle Position Learning Performance Problem. Common causes include Faulty throttle position sensor, Dirty throttle body, Vacuum leaks in the intake system. 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
P1226 2008 Nissan Maxima indicates Closed Throttle Position Learning Performance Problem.
Common causes
Common causes include Faulty throttle position sensor, Dirty throttle body, Vacuum leaks in the intake system.
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 10, 2024
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Code P1226 2008 Nissan Maxima Description

The P1226 diagnostic trouble code (DTC) for a 2008 Nissan Maxima indicates a Closed Throttle Position Learning Performance Problem. This code typically means that the Engine Control Module (ECM) has detected an issue with the closed throttle position learning process. The closed throttle position refers to the position of the throttle plate when the throttle is fully closed, indicating that the driver is not pressing on the gas pedal.

OBDII Code P1226 2008 Nissan Maxima - Closed Throttle Position Learning Performance Problem
P1226 2008 Nissan Maxima Code - Closed Throttle Position Learning Performance Problem

Common Causes of P1226 2008 Nissan Maxima

  1. Faulty throttle position sensor
  2. Dirty throttle body
  3. Vacuum leaks in the intake system
  4. Wiring or electrical issues
  5. ECM software malfunction

Symptoms of P1226 2008 Nissan Maxima

  1. Check engine light illuminated on the dashboard
  2. Rough idling or unstable idle speed
  3. Decreased fuel efficiency
  4. Delayed throttle response
  5. Engine stalling

How to Fix P1226 2008 Nissan Maxima

  1. Perform a diagnostic scan to retrieve the specific trouble code and confirm the issue.
  2. Inspect the throttle position sensor and replace if faulty.
  3. Clean the throttle body to ensure smooth operation.
  4. Check for vacuum leaks and repair if necessary.
  5. Reset the closed throttle position learning process in the ECM.

Cost to Fix P1226 2008 Nissan Maxima

The cost of repairing a Closed Throttle Position Learning Performance Problem on a 2008 Nissan Maxima can vary depending on the specific cause of the issue. In general, the cost of parts such as a throttle position sensor or throttle body cleaner can range from $50 to $200. Labor costs at auto repair shops typically range from $80 to $150 per hour. Therefore, the total repair cost could be anywhere from $150 to $500 or more, depending on the extent of the repairs needed. It's advisable to get a detailed estimate from a trusted auto repair shop in your area to determine the exact cost for your specific situation.

What does this mean?

Tech Notes for P1226 2008 Nissan Maxima

You can try to clean the throttle body first before replacing anything. After clean or replacing the throttle body you will have to do an Idle Air Relearn and Throttle Valve Closed Position Learning



Idle Air Relearn



Throttle Valve Closed Position Learning

When is the Code Detected?

Closed throttle position learning is not performed successfully, repeatedly.

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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 P1226 2008 Nissan Maxima Code

1. What does the OBDII code P1226 mean on a 2008 Nissan Maxima?

The code P1226 indicates a Closed Throttle Position Learning Performance Problem in the engine control module of the vehicle.

2. What are some common symptoms of a P1226 code on a 2008 Nissan Maxima?

Common symptoms include engine stalling, rough idle, lack of power, and potential difficulty starting the vehicle.

3. What are the possible causes of the P1226 code on a 2008 Nissan Maxima?

Potential causes of the P1226 code include a faulty throttle position sensor, issues with the throttle body, vacuum leaks, or problems with the wiring or connectors.

4. How can I diagnose the P1226 code on my 2008 Nissan Maxima?

Diagnosis typically involves using an OBDII scanner to retrieve the code, checking the throttle position sensor's readings, inspecting the throttle body for any issues, and examining the vacuum lines for leaks.

5. Can I drive my 2008 Nissan Maxima with a P1226 code?

It is not recommended to drive the vehicle with a P1226 code as it can lead to engine performance issues and potential safety hazards. It is best to address the problem promptly.

6. How can I fix a P1226 code on a 2008 Nissan Maxima?

Repairing a P1226 code may involve replacing the throttle position sensor, cleaning or replacing the throttle body, fixing any vacuum leaks, or repairing any wiring or connector issues.

7. Will resetting the trouble codes make the P1226 code go away on a 2008 Nissan Maxima?

Resetting the trouble codes may temporarily clear the code, but if the underlying issue causing the P1226 code is not fixed, the code is likely to reappear.

8. How much does it cost to repair a P1226 code on a 2008 Nissan Maxima?

The cost of repairing a P1226 code can vary depending on the exact cause of the issue, but it may range from $100 to $500 or more, including parts and labor.

9. Can a DIY enthusiast fix a P1226 code on a 2008 Nissan Maxima?

Depending on the individual's skill level and access to tools, some DIY enthusiasts may be able to address the P1226 code by following repair guides and utilizing proper diagnostic equipment.

10. How long does it take to repair a P1226 code on a 2008 Nissan Maxima?

The repair time for a P1226 code can vary based on the specific cause of the issue and the expertise of the person performing the repair. It may take anywhere from a few hours to a full day to complete the repair.

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