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P0152 2004 Infiniti G35 Code - O2 Sensor Circuit High Bank 2 Sensor 1

Quick Answer

The O2 sensor, or oxygen sensor, plays a crucial role in monitoring the amount of oxygen in the exhaust gases and adjusting the air-fuel mixture for optimal combustion in the engine. Common causes include Faulty O2 sensor, Wiring or connector issues in the O2 sensor circuit, Vacuum leaks in the intake system. 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 2004 Infiniti G35 indicates O2 Sensor Circuit High Bank 2 Sensor 1.
Common causes
Common causes include Faulty O2 sensor, Wiring or connector issues in the O2 sensor circuit, Vacuum leaks in the intake system.
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 12, 2024
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Code P0152 2004 Infiniti G35 Description

The O2 sensor, or oxygen sensor, plays a crucial role in monitoring the amount of oxygen in the exhaust gases and adjusting the air-fuel mixture for optimal combustion in the engine. The P0152 code specifically refers to a problem with the O2 sensor circuit on Bank 2 Sensor 1 in a 2004 Infiniti G35. In this case, "Bank 2" refers to the side of the engine that does not contain cylinder number 1, and "Sensor 1" indicates that this is the upstream sensor located before the catalytic converter.

OBDII Code P0152 2004 Infiniti G35 - O2 Sensor Circuit High Bank 2 Sensor 1
P0152 2004 Infiniti G35 Code - O2 Sensor Circuit High Bank 2 Sensor 1

Common Causes of P0152 2004 Infiniti G35

  1. Faulty O2 sensor
  2. Wiring or connector issues in the O2 sensor circuit
  3. Vacuum leaks in the intake system
  4. Exhaust leaks near the O2 sensor
  5. Engine running rich due to a fuel system problem

Symptoms of P0152 2004 Infiniti G35

  1. Decreased fuel efficiency
  2. Rough idling or stalling
  3. Engine misfires
  4. Check Engine Light illuminated
  5. Increased emissions

How to Fix P0152 2004 Infiniti G35

  1. Diagnose the O2 sensor circuit using a scan tool to verify the P0152 code and determine if the issue lies with the sensor itself or the wiring/connectors.
  2. Inspect the wiring and connectors for any damage, corrosion, or loose connections. Repair or replace as necessary.
  3. Check for vacuum leaks in the intake system and repair any leaks found.
  4. Inspect the exhaust system for leaks near the O2 sensor and repair as needed.
  5. Replace the O2 sensor if it is determined to be faulty and clear the code from the ECM.

Cost to Fix P0152 2004 Infiniti G35

The typical repair costs for addressing a P0152 code in a 2004 Infiniti G35 can range from $150 to $400, depending on the root 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 recommended to check with local shops for a more accurate estimate. Additionally, factors such as the vehicle's make and model, engine type, and location can influence the final repair costs.

What does this mean?

Tech Notes for P0152 2004 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 2004 Infiniti G35 Code

1. What does the OBDII code P0152 for a 2004 Infiniti G35 indicate?

The code P0152 on a 2004 Infiniti G35 signifies an issue with the O2 sensor circuit high voltage for Bank 2 Sensor 1.

2. What are the common symptoms of O2 Sensor Circuit High Bank 2 Sensor 1 in a 2004 Infiniti G35?

Common symptoms may include poor fuel economy, rough idling, engine misfires, and the illumination of the check engine light.

3. What are the possible causes of OBDII code P0152 on a 2004 Infiniti G35?

Potential causes of the P0152 code include a faulty O2 sensor, damaged wiring or connectors, an exhaust leak, or an issue with the engine's air-fuel ratio.

4. How can I diagnose the O2 Sensor Circuit High Bank 2 Sensor 1 issue in my 2004 Infiniti G35?

Diagnosing the problem involves using an OBDII scanner to retrieve the code, checking the O2 sensor's wiring and connections, inspecting for exhaust leaks, and testing the sensor's voltage output.

5. Can I continue driving my 2004 Infiniti G35 with the P0152 code present?

It is not recommended to drive your vehicle with the P0152 code active, as it can lead to further damage and potentially affect the engine's performance.

6. How do I repair the O2 Sensor Circuit High Bank 2 Sensor 1 problem in my 2004 Infiniti G35?

Repairing the issue involves replacing the faulty O2 sensor, repairing damaged wiring or connectors, fixing any exhaust leaks, and clearing the error code with an OBDII scanner.

7. Is it possible to reset the OBDII code P0152 on a 2004 Infiniti G35 without fixing the underlying issue?

While you can clear the error code temporarily, it will likely reappear if the root cause of the problem, such as a faulty O2 sensor, is not addressed.

8. How much does it cost to replace the O2 sensor in a 2004 Infiniti G35?

The cost of replacing an O2 sensor in a 2004 Infiniti G35 can vary depending on the sensor's brand, quality, and labor costs, but it typically ranges from $100 to $300.

9. Can a DIY enthusiast replace the O2 sensor in a 2004 Infiniti G35?

Replacing the O2 sensor in a 2004 Infiniti G35 can be a DIY project for those with some mechanical experience and the necessary tools. However, if unsure, it's best to consult a professional mechanic.

10. How long does it take to fix the O2 Sensor Circuit High Bank 2 Sensor 1 issue in a 2004 Infiniti G35?

The repair time can vary depending on the extent of the problem and the availability of parts. On average, it can take anywhere from 1 to 3 hours to fix the O2 Sensor Circuit High Bank 2 Sensor 1 problem in a 2004 Infiniti G35.

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