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P1226 2011 Nissan Pathfinder Code - Closed Throttle Position Learning Performance Problem

Quick Answer

The P1226 diagnostic trouble code (DTC) in a 2011 Nissan Pathfinder indicates a closed throttle position learning performance problem. Common causes include Faulty throttle position sensor, Dirty throttle body, Vacuum leak. 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 2011 Nissan Pathfinder indicates Closed Throttle Position Learning Performance Problem.
Common causes
Common causes include Faulty throttle position sensor, Dirty throttle body, Vacuum leak.
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 17, 2024
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Code P1226 2011 Nissan Pathfinder Description

The P1226 diagnostic trouble code (DTC) in a 2011 Nissan Pathfinder indicates a closed throttle position learning performance problem. This code is typically triggered when the Engine Control Module (ECM) detects that the actual throttle position does not match the expected position during the closed throttle position learning process. This learning process is crucial for the ECM to accurately control the throttle opening and closing, fuel injection, and ignition timing.

OBDII Code P1226 2011 Nissan Pathfinder - Closed Throttle Position Learning Performance Problem
P1226 2011 Nissan Pathfinder Code - Closed Throttle Position Learning Performance Problem

Common Causes of P1226 2011 Nissan Pathfinder

  1. Faulty throttle position sensor
  2. Dirty throttle body
  3. Vacuum leak
  4. ECM malfunction
  5. Wiring or connector issues

Symptoms of P1226 2011 Nissan Pathfinder

  1. Rough idling
  2. Stalling
  3. Poor acceleration
  4. Decreased fuel efficiency
  5. Check Engine Light illuminated

How to Fix P1226 2011 Nissan Pathfinder

  1. Perform a thorough inspection of the throttle position sensor and replace if necessary.
  2. Clean the throttle body to ensure smooth operation.
  3. Check for any vacuum leaks and repair as needed.
  4. Reset the closed throttle position learning process using a diagnostic scan tool.
  5. If the issue persists, consider checking the ECM for any faults or reprogramming if required.

Cost to Fix P1226 2011 Nissan Pathfinder

The typical repair costs for addressing a P1226 code in a 2011 Nissan Pathfinder can range from $150 to $500, depending on the specific cause of the issue and the labor rates in your area. It's important to note that diagnostic time and labor rates at auto repair shops can vary, so it's advisable to get a detailed estimate from a trusted mechanic before proceeding with the repairs.

What does this mean?

Tech Notes for P1226 2011 Nissan Pathfinder

If there are no intake leaks, clean throttle body, adjust engine idle and erase engine code. If the code comes back you may have to replace the Electric Throttle Control Actuator (Motor) to fix the problem.



Nissan Pathfinder Idle Air Volume Learning Procedure

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 2011 Nissan Pathfinder Code

1. What are the common symptoms of OBDII code P1226 in a 2011 Nissan Pathfinder?

The common symptoms of OBDII code P1226 in a 2011 Nissan Pathfinder include rough idling, poor acceleration, stalling, and the vehicle going into limp mode.

2. What does the OBDII code P1226 on a 2011 Nissan Pathfinder indicate?

OBDII code P1226 on a 2011 Nissan Pathfinder indicates a Closed Throttle Position Learning Performance Problem.

3. What are the possible causes of OBDII code P1226 in a 2011 Nissan Pathfinder?

Possible causes of OBDII code P1226 in a 2011 Nissan Pathfinder include a faulty throttle position sensor, a vacuum leak, a dirty throttle body, or a problem with the throttle control actuator.

4. How can I diagnose the Closed Throttle Position Learning Performance Problem in my 2011 Nissan Pathfinder?

Diagnosing the Closed Throttle Position Learning Performance Problem in a 2011 Nissan Pathfinder involves checking the throttle position sensor, inspecting for vacuum leaks, cleaning the throttle body, and testing the throttle control actuator.

5. How can I repair OBDII code P1226 in my 2011 Nissan Pathfinder?

Repairing OBDII code P1226 in a 2011 Nissan Pathfinder may involve replacing the throttle position sensor, fixing any vacuum leaks, cleaning the throttle body, or replacing the throttle control actuator if necessary.

6. Can I drive my 2011 Nissan Pathfinder with OBDII code P1226?

It is not recommended to drive your 2011 Nissan Pathfinder with OBDII code P1226, as it can lead to poor performance, stalling, and potentially unsafe driving conditions.

7. How much does it cost to repair OBDII code P1226 in a 2011 Nissan Pathfinder?

The cost to repair OBDII code P1226 in a 2011 Nissan Pathfinder can vary depending on the specific issue causing the code. Costs may include parts and labor for sensor replacement, vacuum leak repair, or throttle body cleaning.

8. Is it possible to reset OBDII code P1226 in a 2011 Nissan Pathfinder without repair?

While you can clear the code temporarily with an OBDII scanner, it is important to address the underlying issue causing OBDII code P1226 in a 2011 Nissan Pathfinder to prevent further damage and ensure proper vehicle operation.

9. Can a DIY enthusiast fix OBDII code P1226 in a 2011 Nissan Pathfinder?

Depending on the DIY enthusiast's skill level and access to tools, it may be possible to address OBDII code P1226 in a 2011 Nissan Pathfinder by replacing the throttle position sensor, cleaning the throttle body, or fixing vacuum leaks.

10. How often does OBDII code P1226 occur in a 2011 Nissan Pathfinder?

OBDII code P1226 in a 2011 Nissan Pathfinder can occur due to various factors, but it is not a common code. If experienced, it should be addressed promptly to avoid further issues with the vehicle's performance.

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