AutoCodes – Infiniti – P0152 2003 Infiniti G35

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

Quick Answer

The front heated oxygen sensor (or O2 sensor 1) is placed into the exhaust manifold. Common causes include Faulty Front Heated Oxygen Sensor Bank 2, Intake air leaks may be faulty, Exhaust gas 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 Front Heated Oxygen Sensor Bank 2, Intake air leaks may be faulty, Exhaust gas 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.

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Code Popularity 6,151

How popular is this code, among other codes? Low

Repair Importance Level

Moderate (Service soon) (2 / 3)

Repair Difficulty Level

Intermediate (2 / 3)

What is this?

Table of contents Created and updated by William Orellana on Apr 01, 2024

Description
Possible Causes
How To Fix
Tech Notes
Cost to Diagnose
FAQs
Comments
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Code P0152 2003 Infiniti G35 Description

The front heated oxygen sensor (or O2 sensor 1) is placed into the exhaust manifold. It detects the amount of oxygen in the exhaust gas compared to the outside air. The heated oxygen sensor 1 has a closed-end tube made of ceramic zirconia. The zirconia generates voltage from approximately 1V in richer conditions to 0V in leaner conditions. The heated oxygen sensor 1 signal is sent to the Engine Control Module (ECM). The ECM adjusts the injection pulse duration to achieve the ideal air-fuel ratio. The ideal air-fuel ratio occurs near the radical change from 1V to 0V.

OBDII Code P0152 2003 Infiniti G35 - O2 Sensor Circuit High Bank 2 Sensor 1 - AutoCodes.com — P0152 2003 Infiniti G35 Code - O2 Sensor Circuit High Bank 2 Sensor 1

What does this mean?

What are the Possible Causes of the DTC P0152 2003 Infiniti G35?

Faulty Front Heated Oxygen Sensor Bank 2
Intake air leaks may be faulty
Exhaust gas leaks
Front Heated Oxygen Sensor Bank 2 harness is open or shorted
Front Heated Oxygen Sensor Bank 2 circuit poor electrical connection
Inappropriate fuel pressure
Faulty fuel injectors

How to Fix the DTC P0152 2003 Infiniti G35?

Review the 'Possible Causes' above and visually examine the corresponding wiring harness and connectors. Check for damaged components and inspect connector pins for signs of being broken, bent, pushed out, or corroded.

What does this mean?

Code Tech Notes

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

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the P0152 2003 Infiniti G35 code, it typically requires 1.0 hour of labor. Rates vary by location, vehicle, and shop. Many shops charge between $80–$150 per hour; dealerships and metro areas may be higher, independents may be lower.

Need more information about the P0152 2003 Infiniti G35 code?

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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.