P1226 Infiniti Code - Closed Throttle Position Learning Performance Problem
Quick Answer
The P1226 Infiniti code 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 Infiniti 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.
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Code P1226 Infiniti Description
The P1226 Infiniti code indicates a Closed Throttle Position Learning Performance Problem. This means that the engine control module (ECM) is unable to properly learn and adjust the closed throttle position, which can lead to various performance issues in the vehicle. The closed throttle position is crucial for the engine to idle smoothly and respond correctly to driver inputs. When this learning process is not functioning correctly, it can result in poor idling, stalling, hesitation, or lack of power during acceleration.
Common Causes of P1226 Infiniti
- Faulty throttle position sensor
- Dirty throttle body
- Vacuum leaks in the intake system
- Wiring or electrical issues in the throttle position sensor circuit
- ECM software or hardware malfunction
Symptoms of P1226 Infiniti
- Rough or unstable idling
- Engine stalling at idle or low speeds
- Hesitation or lack of power during acceleration
- Check Engine Light illuminated on the dashboard
How to Fix P1226 Infiniti
- Perform a thorough inspection of the throttle position sensor and its wiring for any signs of damage or wear.
- Clean the throttle body to remove any carbon buildup or debris that may be affecting its operation.
- Check for vacuum leaks in the intake system and repair or replace any damaged components.
- Reset the closed throttle position learning process using a diagnostic scan tool to relearn the correct throttle position.
- If necessary, update the ECM software to the latest version to address any potential software issues related to the closed throttle position learning.
Cost to Fix P1226 Infiniti
The typical repair costs for addressing a P1226 Infiniti code can range from $100 to $500, depending on the specific cause of the issue and the labor rates at the auto repair shop. It's essential to consider that diagnostic time and labor rates can vary based on location, vehicle make and model, and engine type. Therefore, it's recommended to check with local auto repair shops for a more accurate estimate based on your specific circumstances.
When is the Code Detected?
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Information for Specific Infiniti Models
- P1226 2003 Infiniti G35 — Closed Throttle Position Learning Performance Problem
- P1226 2004 Infiniti G35 — Closed Throttle Position Learning Performance Problem
- P1226 2005 Infiniti G35 — Closed Throttle Position Learning Performance Problem
- P1226 2006 Infiniti G35 — Closed Throttle Position Learning Performance Problem
Frequently Asked Questions about P1226 Infiniti Code
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