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P0152 2005 Infiniti G35 Code - Air Fuel Ratio Circuit High Bank 2 Sensor 1

Quick Answer

The P0152 diagnostic trouble code (DTC) on a 2005 Infiniti G35 indicates a problem with the air-fuel ratio circuit for Bank 2 Sensor 1. Common causes include Faulty oxygen sensor, Wiring issues (shorts, open circuits), Vacuum 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 2005 Infiniti G35 indicates Air Fuel Ratio Circuit High Bank 2 Sensor 1.
Common causes
Common causes include Faulty oxygen sensor, Wiring issues (shorts, open circuits), Vacuum 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 07, 2024
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Code P0152 2005 Infiniti G35 Description

The P0152 diagnostic trouble code (DTC) on a 2005 Infiniti G35 indicates a problem with the air-fuel ratio circuit for Bank 2 Sensor 1. This sensor is located in the exhaust system before the catalytic converter and is responsible for measuring the oxygen content in the exhaust gases. The data gathered by this sensor is crucial for the engine control unit (ECU) to adjust the air-fuel mixture to optimize combustion efficiency.

OBDII Code P0152 2005 Infiniti G35 - Air Fuel Ratio Circuit High Bank 2 Sensor 1
P0152 2005 Infiniti G35 Code - Air Fuel Ratio Circuit High Bank 2 Sensor 1

Common Causes of P0152 2005 Infiniti G35

  1. Faulty oxygen sensor
  2. Wiring issues (shorts, open circuits)
  3. Vacuum leaks
  4. Exhaust system leaks
  5. Issues with the ECU

Symptoms of P0152 2005 Infiniti G35

  1. Decreased fuel efficiency
  2. Rough idling or stalling
  3. Engine misfires
  4. Check Engine Light illuminated
  5. Poor acceleration or hesitation

How to Fix P0152 2005 Infiniti G35

  1. Diagnose the issue using a scan tool to confirm the P0152 code and perform a visual inspection of the oxygen sensor and its wiring.
  2. Test the oxygen sensor using a multimeter to check for proper voltage output.
  3. Inspect and repair any damaged wiring or connectors.
  4. Replace the oxygen sensor if it is faulty or not providing accurate readings.
  5. Clear the DTC and test drive the vehicle to ensure the issue is resolved.

Cost to Fix P0152 2005 Infiniti G35

The typical repair costs for resolving a P0152 code on a 2005 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 based on factors such as location, vehicle make and model, and engine type. Most auto repair shops charge between $80 and $150 per hour, but rates may be higher in metropolitan areas or at dealerships, while independent shops often charge less. It is advisable to check local rates for a more precise estimate.

What does this mean?

Tech Notes for P0152 2005 Infiniti G35

Replacing the Air fuel ratio (A/F) sensor 1 bank 2 usually takes care of the problem.

When is the Code Detected?

The Air Fuel Ratio (A/F) signal computed by Engine Control Module (ECM) from the A/F sensor 1 signal is constantly approx. 5V.

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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 2005 Infiniti G35 Code

1. What does the OBDII code P0152 for a 2005 Infiniti G35 mean?

- The code P0152 indicates a problem with the Air Fuel Ratio Circuit High Bank 2 Sensor 1, specifically relating to the oxygen sensor located before the catalytic converter on bank 2 of the engine.

2. What are common symptoms of a P0152 code in a 2005 Infiniti G35?

- Common symptoms include poor fuel economy, rough idling, engine misfires, a decrease in power and acceleration, and the illumination of the Check Engine light.

3. What are possible causes of a P0152 code in a 2005 Infiniti G35?

- Potential causes include a faulty oxygen sensor, damaged wiring or connectors in the sensor circuit, exhaust leaks, vacuum leaks, or issues with the engine's air-fuel mixture.

4. How can I diagnose a P0152 code in my 2005 Infiniti G35?

- Diagnosis typically involves using an OBDII scanner to read the code, performing a visual inspection of the oxygen sensor and its wiring, testing the sensor's voltage output, and checking for any exhaust or vacuum leaks.

5. Can I still drive my 2005 Infiniti G35 with a P0152 code?

- It is not recommended to continue driving with a P0152 code as it can lead to further damage to the engine and emissions system. It is advisable to have the issue diagnosed and repaired promptly.

6. How can I repair a P0152 code in a 2005 Infiniti G35?

- Repair options may include replacing the bank 2 sensor 1 oxygen sensor, repairing or replacing damaged wiring or connectors, fixing any exhaust or vacuum leaks, and clearing the code with an OBDII scanner.

7. Is it necessary to reset the ECU after repairing a P0152 code in a 2005 Infiniti G35?

- Yes, it is recommended to reset the Engine Control Unit (ECU) after repairing a P0152 code to clear the stored fault code and ensure proper functioning of the system.

8. How much does it cost to fix a P0152 code in a 2005 Infiniti G35?

- The cost of fixing a P0152 code can vary depending on the exact cause of the issue, but it may range from $100 to $300 for parts and labor, excluding any additional repairs that may be needed.

9. Can a DIY enthusiast repair a P0152 code in a 2005 Infiniti G35?

- While some experienced DIY enthusiasts may be able to replace the oxygen sensor or repair wiring themselves, diagnosing and fixing more complex issues related to a P0152 code may require professional expertise.

10. How often does a P0152 code occur in a 2005 Infiniti G35?

- The occurrence of a P0152 code can vary depending on factors such as driving conditions, maintenance history, and the overall health of the vehicle's emission system. Regular maintenance can help prevent such issues.

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