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P1122 2005 Infiniti G35 Code - Electric Throttle Control Performance Problem

Quick Answer

The P1122 diagnostic trouble code (DTC) in a 2005 Infiniti G35 indicates an issue with the Electric Throttle Control System. Common causes include Malfunctioning throttle position sensor, Dirty or faulty throttle body, Wiring issues or loose connections. 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
P1122 2005 Infiniti G35 indicates Electric Throttle Control Performance Problem.
Common causes
Common causes include Malfunctioning throttle position sensor, Dirty or faulty throttle body, Wiring issues or loose connections.
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 09, 2024
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Code P1122 2005 Infiniti G35 Description

The P1122 diagnostic trouble code (DTC) in a 2005 Infiniti G35 indicates an issue with the Electric Throttle Control System. This system is responsible for managing the airflow into the engine by controlling the throttle valve's position based on driver input. When the ECM (Engine Control Module) detects that the electric throttle control performance is outside the predetermined range, it triggers the P1122 code. This could be due to a variety of reasons, such as a malfunctioning throttle position sensor, throttle body issues, wiring problems, or even a faulty ECM.

OBDII Code P1122 2005 Infiniti G35 - Electric Throttle Control Performance Problem
P1122 2005 Infiniti G35 Code - Electric Throttle Control Performance Problem

Common Causes of P1122 2005 Infiniti G35

  1. Malfunctioning throttle position sensor
  2. Dirty or faulty throttle body
  3. Wiring issues or loose connections
  4. Faulty ECM
  5. Vacuum leaks or intake air leaks

Symptoms of P1122 2005 Infiniti G35

  1. Delayed throttle response
  2. Reduced engine power
  3. Engine stalling or hesitation
  4. Illuminated Check Engine Light
  5. Limp mode activation

How to Fix P1122 2005 Infiniti G35

  1. Start by conducting a thorough diagnostic scan to confirm the P1122 code and identify any other related codes.
  2. Inspect the throttle position sensor and throttle body for any signs of damage or wear. Clean the throttle body if necessary.
  3. Check the wiring harness and connectors for any corrosion, breaks, or loose connections. Repair or replace as needed.
  4. Test the ECM for proper functionality and consider reprogramming or replacing if deemed faulty.
  5. Clear the DTC and perform a test drive to ensure the issue has been resolved.

Cost to Fix P1122 2005 Infiniti G35

The cost of repairing a P1122 code in a 2005 Infiniti G35 can vary depending on the root cause of the issue. On average, the repair cost can range from $200 to $600. This includes parts such as a new throttle position sensor, throttle body cleaning, wiring repairs, and potential ECM replacement. Labor costs can add an additional $100 to $300, depending on the shop's hourly rate and the complexity of the repair. It's advisable to consult with a certified mechanic or dealership for a more accurate estimate based on your specific vehicle and location.

What does this mean?

Tech Notes for P1122 2005 Infiniti G35

Start by performing the "Idle Air Volume Learning Procedure", if the problem persists the Electric Throttle Control Actuator may need to be replaced.

When is the Code Detected?

Electric throttle control function does not operate properly.

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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 P1122 2005 Infiniti G35 Code

1. What are the common symptoms of OBDII code P1122 in a 2005 Infiniti G35?

- Common symptoms include poor acceleration, rough idling, stalling, and the vehicle going into "limp mode."

2. What are the possible causes of OBDII code P1122 in a 2005 Infiniti G35?

- The code is typically triggered by issues with the electric throttle control system, such as a faulty throttle position sensor or wiring problems.

3. How can I diagnose the cause of OBDII code P1122 in my 2005 Infiniti G35?

- A thorough inspection of the throttle body, throttle position sensor, and related wiring is recommended. Checking for any loose connections or damaged components is crucial.

4. Can a dirty throttle body cause OBDII code P1122 in a 2005 Infiniti G35?

- Yes, a dirty or clogged throttle body can disrupt the proper functioning of the electric throttle control system and potentially trigger the P1122 code.

5. What are some repair tips for addressing OBDII code P1122 in a 2005 Infiniti G35?

- Cleaning the throttle body, inspecting and repairing any damaged wiring, and replacing the throttle position sensor are common repair steps for resolving this code.

6. Is it safe to continue driving my 2005 Infiniti G35 with OBDII code P1122?

- It is not recommended to drive the vehicle with this code present, as it can lead to performance issues and potential safety concerns. It is best to address the issue promptly.

7. Can resetting the OBDII code P1122 in a 2005 Infiniti G35 make it go away permanently?

- Resetting the code may temporarily clear the error, but if the underlying issue is not addressed, the code is likely to reappear.

8. How much does it typically cost to repair OBDII code P1122 in a 2005 Infiniti G35?

- The cost of repairs can vary depending on the specific cause of the issue. It is recommended to consult a mechanic for a proper diagnosis and estimate.

9. Can a DIY enthusiast without much experience fix OBDII code P1122 in a 2005 Infiniti G35?

- While some basic inspections and cleaning tasks can be done by a DIY enthusiast, diagnosing and repairing the root cause of the code may require professional expertise.

10. Will OBDII code P1122 in a 2005 Infiniti G35 cause permanent damage if not addressed promptly?

- Ignoring the code can potentially lead to further damage to the electric throttle control system and other related components, so it is advisable to address the issue promptly.

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