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Engine-Codes – Infiniti – P2122 2005 Infiniti G35

P2122 2005 Infiniti G35 Code - Accelerator Pedal Position Sensor Circuit Range/Performance

Quick Answer

The P2122 code for a 2005 Infiniti G35 indicates a problem with the Accelerator Pedal Position Sensor Circuit Range/Performance. Common causes include Faulty accelerator pedal position sensor, Damaged wiring or connectors in the sensor circuit, Corrosion or contamination in the sensor 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
P2122 2005 Infiniti G35 indicates Accelerator Pedal Position Sensor Circuit Range/Performance.
Common causes
Common causes include Faulty accelerator pedal position sensor, Damaged wiring or connectors in the sensor circuit, Corrosion or contamination in the sensor 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 17, 2024
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Code P2122 2005 Infiniti G35 Description

The P2122 code for a 2005 Infiniti G35 indicates a problem with the Accelerator Pedal Position Sensor Circuit Range/Performance. This sensor is responsible for sending signals to the engine control module (ECM) regarding the position of the accelerator pedal. The ECM uses this information to determine how much fuel to inject into the engine and adjust the throttle accordingly.

OBDII Code P2122 2005 Infiniti G35 - Accelerator Pedal Position Sensor Circuit Range/Performance
P2122 2005 Infiniti G35 Code - Accelerator Pedal Position Sensor Circuit Range/Performance

Common Causes of P2122 2005 Infiniti G35

  1. Faulty accelerator pedal position sensor.
  2. Damaged wiring or connectors in the sensor circuit.
  3. Corrosion or contamination in the sensor connections.
  4. Malfunctioning ECM.
  5. Electrical issues such as short circuits or open circuits in the sensor circuit.

Symptoms of P2122 2005 Infiniti G35

  1. Poor acceleration or lack of response when pressing the accelerator pedal.
  2. Engine stalling or rough idling.
  3. Check Engine Light illuminated on the dashboard.
  4. Reduced fuel efficiency.
  5. Inability to reach higher speeds or maintain consistent speed.

How to Fix P2122 2005 Infiniti G35

  1. Begin by diagnosing the issue using a scan tool to retrieve the specific trouble code and pinpoint the exact cause of the problem.
  2. Inspect the accelerator pedal position sensor and its wiring for any visible damage or corrosion. Replace the sensor if necessary.
  3. Check the connections and wiring in the sensor circuit for any loose or damaged components. Repair or replace as needed.
  4. Clear the trouble code from the ECM memory and test drive the vehicle to ensure the issue has been resolved.
  5. If the problem persists, further diagnostic testing may be required to identify any underlying issues with the ECM or other related components.

Cost to Fix P2122 2005 Infiniti G35

The typical repair costs for addressing a P2122 code on a 2005 Infiniti G35 can range from $200 to $500, including parts and labor. However, it is important to note that specific diagnosis time and labor rates at auto repair shops can vary based on factors such as location, vehicle make and model, and engine type. Most auto repair shops charge between $80 and $150 per hour for labor, but rates may be higher in metropolitan areas or at dealerships, while independent shops may offer lower rates. It is recommended to obtain quotes from local shops for a more accurate estimate.

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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 P2122 2005 Infiniti G35 Code

1. What are common symptoms of OBDII code P2122 on a 2005 Infiniti G35?

The common symptoms include issues with acceleration, decreased engine power, and the vehicle going into limp mode.

2. What causes the OBDII code P2122 on a 2005 Infiniti G35?

The code P2122 is typically triggered by a faulty accelerator pedal position sensor, wiring issues, or a problem with the throttle body.

3. How can I diagnose the OBDII code P2122 on my 2005 Infiniti G35?

Diagnosing the code involves checking the accelerator pedal position sensor's electrical connections, inspecting the sensor for any physical damage, and testing the sensor's output using a multimeter.

4. Can a dirty throttle body cause the OBDII code P2122 on a 2005 Infiniti G35?

Yes, a dirty throttle body can disrupt the sensor's readings and lead to the P2122 code. Cleaning the throttle body may solve the issue before replacing any parts.

5. How can I repair the OBDII code P2122 on my 2005 Infiniti G35?

Repairing the P2122 code may involve replacing the accelerator pedal position sensor, repairing any damaged wiring, or cleaning the throttle body. It's recommended to follow the manufacturer's repair procedures.

6. Can I drive my 2005 Infiniti G35 with the OBDII code P2122?

It's not recommended to drive the vehicle with the P2122 code present, as it can affect the engine's performance and potentially lead to further damage. It's best to address the issue promptly.

7. How much does it cost to repair the OBDII code P2122 on a 2005 Infiniti G35?

The cost of repairing the P2122 code can vary depending on the cause of the issue and the labor rates in your area. It's advisable to get a few quotes from reputable mechanics or dealerships.

8. Can resetting the OBDII code P2122 on a 2005 Infiniti G35 make it go away permanently?

Simply resetting the code without addressing the underlying issue will not make it go away permanently. It's essential to diagnose and repair the root cause of the problem to prevent the code from reappearing.

9. Will the OBDII code P2122 on a 2005 Infiniti G35 affect fuel efficiency?

Yes, the P2122 code can affect fuel efficiency as it may disrupt the proper functioning of the accelerator pedal position sensor, leading to incorrect fuel delivery and engine performance.

10. Is it safe to ignore the OBDII code P2122 on a 2005 Infiniti G35?

Ignoring the P2122 code can potentially lead to further issues with engine performance and safety. It's best to address the problem promptly to ensure the vehicle operates correctly.

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