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P0152 2003 Infiniti G35 Code - O2 Sensor Circuit High Bank 2 Sensor 1

Quick Answer

The P0152 diagnostic trouble code (DTC) is specific to a fault in the O2 sensor circuit for Bank 2 Sensor 1 in a 2003 Infiniti G35. Common causes include Faulty O2 sensor, Damaged wiring or connectors in the O2 sensor circuit, Exhaust leaks. Severity is Moderate - service should be scheduled soon. The vehicle may still be drivable for short trips if it runs normally, but avoid hard driving and repair it soon.

What it means
P0152 2003 Infiniti G35 indicates O2 Sensor Circuit High Bank 2 Sensor 1.
Common causes
Common causes include Faulty O2 sensor, Damaged wiring or connectors in the O2 sensor circuit, Exhaust leaks.
Severity
Moderate - service should be scheduled soon.
Can I drive?
The vehicle may still be drivable for short trips if it runs normally, but avoid hard driving and repair it soon.
What is this?
Table of contents Created and updated by William Orellana on Sep 10, 2024
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Code P0152 2003 Infiniti G35 Description

The P0152 diagnostic trouble code (DTC) is specific to a fault in the O2 sensor circuit for Bank 2 Sensor 1 in a 2003 Infiniti G35. This code indicates that there is a high voltage condition detected in the oxygen sensor circuit, which is responsible for monitoring the oxygen levels in the exhaust gases. The O2 sensor plays a crucial role in ensuring the proper air-fuel mixture for combustion in the engine. When the O2 sensor detects high voltage, it means that there is an excessive amount of oxygen in the exhaust gases, which can lead to a lean air-fuel mixture.

OBDII Code P0152 2003 Infiniti G35 - O2 Sensor Circuit High Bank 2 Sensor 1
P0152 2003 Infiniti G35 Code - O2 Sensor Circuit High Bank 2 Sensor 1

Common Causes of P0152 2003 Infiniti G35

  1. Faulty O2 sensor
  2. Damaged wiring or connectors in the O2 sensor circuit
  3. Exhaust leaks
  4. Vacuum leaks
  5. Issues with the engine's air intake system

Symptoms of P0152 2003 Infiniti G35

  1. Decreased fuel efficiency
  2. Engine misfires
  3. Rough idling
  4. Hesitation during acceleration
  5. Increased emissions

How to Fix P0152 2003 Infiniti G35

  1. Begin by inspecting the O2 sensor wiring and connectors for any damage or loose connections. Repair or replace as needed.
  2. Test the O2 sensor using a multimeter to determine if it is functioning correctly. Replace the sensor if it is faulty.
  3. Check for exhaust leaks and repair them to prevent excessive oxygen from entering the exhaust system.
  4. Inspect the engine's air intake system for leaks or restrictions that could affect the air-fuel mixture. Address any issues found.
  5. Clear the DTC using an OBD-II scanner after completing the repairs and verify that the code does not return.

Cost to Fix P0152 2003 Infiniti G35

The typical repair costs for addressing a P0152 code on a 2003 Infiniti G35 can range from $150 to $400, including parts and labor. However, specific diagnosis time and labor rates at auto repair shops can vary depending on factors such as location, vehicle make and model, and engine type. It is recommended to check local rates for a more accurate estimate. Labor rates at most auto repair shops range between $80 and $150 per hour, but rates may be higher at dealerships or in metropolitan areas and lower at independent shops.

What does this mean?

Tech Notes for P0152 2003 Infiniti G35

Replacing the Front Heated Oxygen Sensor Bank 2 usually takes care of the problem.

When is the Code Detected?

An excessively high voltage from the sensor is sent to Engine Control Module (ECM).

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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 P0152 2003 Infiniti G35 Code

1. What are the common symptoms of OBDII code P0152 on a 2003 Infiniti G35?

- Common symptoms include decreased fuel efficiency, rough idling, engine misfires, and the illumination of the Check Engine light.

2. What is the primary cause of OBDII code P0152 on a 2003 Infiniti G35?

- The primary cause is typically a malfunctioning O2 sensor (Bank 2 Sensor 1), which is responsible for monitoring the oxygen levels in the exhaust gases.

3. Can a faulty O2 sensor cause damage to the engine if not repaired promptly?

- Yes, a faulty O2 sensor can lead to decreased engine performance, increased emissions, and potential damage to the catalytic converter if left unrepaired for an extended period.

4. How can I diagnose if the O2 sensor is the root cause of OBDII code P0152 on my 2003 Infiniti G35?

- Using a diagnostic tool, you can monitor the O2 sensor's voltage output and compare it to the manufacturer's specifications to determine if it is functioning correctly.

5. Are there any DIY repair tips for addressing OBDII code P0152 on a 2003 Infiniti G35?

- DIY repair tips include checking for damaged wiring or connectors leading to the O2 sensor, ensuring proper sensor installation, and clearing the code to see if it returns.

6. Is it safe to continue driving my 2003 Infiniti G35 with OBDII code P0152 present?

- While the vehicle may still be operable, it is recommended to address the issue promptly to prevent potential engine damage and ensure optimal performance.

7. How much does it typically cost to repair OBDII code P0152 on a 2003 Infiniti G35?

- The cost of repairing OBDII code P0152 can vary depending on the exact cause, but it may range from $100 to $300 for parts and labor.

8. Can resetting the OBDII code P0152 on a 2003 Infiniti G35 make it disappear permanently?

- Resetting the code may temporarily turn off the Check Engine light, but if the underlying issue, such as a faulty O2 sensor, is not addressed, the code is likely to reappear.

9. How long does it typically take to replace the O2 sensor for OBDII code P0152 on a 2003 Infiniti G35?

- The replacement of the O2 sensor (Bank 2 Sensor 1) usually takes around 30 minutes to 1 hour for a professional mechanic.

10. Are there any preventative measures to avoid OBDII code P0152 from occurring again on a 2003 Infiniti G35?

- Regular maintenance, such as checking and replacing O2 sensors at recommended intervals, can help prevent the recurrence of OBDII code P0152 in the future.

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