Engine-CodesNissan – P1226 2007 Nissan Maxima

P1226 2007 Nissan Maxima Code - Closed Throttle Position Learning Performance Problem

Quick Answer

The P1226 diagnostic trouble code (DTC) in a 2007 Nissan Maxima indicates a problem with the Closed Throttle Position Learning (CTPL) system. Common causes include Faulty throttle position sensor, Damaged wiring or connectors, Dirty throttle body. 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 2007 Nissan Maxima indicates Closed Throttle Position Learning Performance Problem.
Common causes
Common causes include Faulty throttle position sensor, Damaged wiring or connectors, Dirty throttle body.
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 12, 2024
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Code P1226 2007 Nissan Maxima Description

The P1226 diagnostic trouble code (DTC) in a 2007 Nissan Maxima indicates a problem with the Closed Throttle Position Learning (CTPL) system. The CTPL system is responsible for calibrating the throttle position sensor to ensure accurate readings when the throttle is closed. When the CTPL system malfunctions, it can lead to incorrect throttle position readings, affecting the vehicle's performance.

OBDII Code P1226 2007 Nissan Maxima - Closed Throttle Position Learning Performance Problem
P1226 2007 Nissan Maxima Code - Closed Throttle Position Learning Performance Problem

Common Causes of P1226 2007 Nissan Maxima

  1. Faulty throttle position sensor
  2. Damaged wiring or connectors
  3. Dirty throttle body
  4. Malfunctioning ECM

Symptoms of P1226 2007 Nissan Maxima

  1. Poor engine performance
  2. Rough idling
  3. Stalling
  4. Reduced fuel efficiency
  5. Hesitation or lack of response when accelerating

How to Fix P1226 2007 Nissan Maxima

  1. Diagnose the issue by using a scan tool to retrieve the DTC and inspecting the throttle position sensor, wiring, and connectors.
  2. Clean the throttle body to ensure proper operation.
  3. Replace the throttle position sensor if it is found to be faulty.
  4. Check and repair any damaged wiring or connectors.
  5. If necessary, reprogram or replace the ECM to address the CTPL problem.

Cost to Fix P1226 2007 Nissan Maxima

The typical repair costs for addressing a P1226 code in a 2007 Nissan Maxima can range from $200 to $500, 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 check with local shops for a more accurate estimate.

Tech Notes for P1226 2007 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 2007 Nissan Maxima Code

1. What are the common symptoms of OBDII code P1226 in a 2007 Nissan Maxima?

- Common symptoms include rough idle, stalling, reduced engine power, and difficulty accelerating.

2. What does the OBDII code P1226 for a 2007 Nissan Maxima indicate?

- The code signifies a Closed Throttle Position Learning Performance Problem, suggesting issues with the throttle position sensor or related components.

3. What are the possible causes of OBDII code P1226 in a 2007 Nissan Maxima?

- Causes may include a faulty throttle position sensor, damaged wiring or connectors, throttle body issues, or a problem with the engine control module (ECM).

4. How can I diagnose the Closed Throttle Position Learning Performance Problem in my 2007 Nissan Maxima?

- Diagnosis typically involves checking the throttle position sensor's readings, inspecting wiring for damage, and testing the throttle body for proper functioning.

5. Can a dirty throttle body cause OBDII code P1226 in a 2007 Nissan Maxima?

- Yes, a dirty or clogged throttle body can disrupt proper throttle position readings and trigger the P1226 code.

6. What are some repair tips for addressing OBDII code P1226 in a 2007 Nissan Maxima?

- Start by cleaning the throttle body, inspecting and repairing any damaged wiring or connectors, and recalibrating the throttle position sensor.

7. Is it safe to continue driving with OBDII code P1226 in a 2007 Nissan Maxima?

- It is not recommended to drive the vehicle with this code present, as it can lead to poor engine performance and potential safety hazards.

8. Can resetting the ECM clear OBDII code P1226 in a 2007 Nissan Maxima?

- Resetting the ECM may temporarily clear the code, but it is crucial to address the underlying issue to prevent the code from reoccurring.

9. How much does it typically cost to repair OBDII code P1226 in a 2007 Nissan Maxima?

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

10. Should I attempt to fix OBDII code P1226 in my 2007 Nissan Maxima myself?

- While some DIY enthusiasts may be able to tackle this repair, it is recommended to seek professional help, especially if you are not familiar with throttle body or sensor maintenance.

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