Engine-CodesInfiniti – P0150 Infiniti

P0150 Infiniti Code - Air Fuel Ratio Circuit Bank 2 Sensor 1

Quick Answer

The P0150 code for Infiniti vehicles specifically relates to the Air Fuel Ratio Circuit Bank 2 Sensor 1. Common causes include Faulty oxygen sensor, Damaged wiring or connectors, 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
P0150 Infiniti indicates Air Fuel Ratio Circuit Bank 2 Sensor 1.
Common causes
Common causes include Faulty oxygen sensor, Damaged wiring or connectors, 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.
Table of contents Created and updated by William Orellana on Sep 11, 2024
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Code P0150 Infiniti Description

The P0150 code for Infiniti vehicles specifically relates to the Air Fuel Ratio Circuit Bank 2 Sensor 1. This code indicates that there is an issue with the oxygen sensor located on the bank 2 side of the engine. The oxygen sensor is responsible for measuring the amount of oxygen in the exhaust gases and providing feedback to the engine control module (ECM) to adjust the air-fuel mixture for optimal combustion.

OBDII Code P0150 Infiniti - Air Fuel Ratio Circuit Bank 2 Sensor 1
P0150 Infiniti Code - Air Fuel Ratio Circuit Bank 2 Sensor 1

Common Causes of P0150 Infiniti

  1. Faulty oxygen sensor
  2. Damaged wiring or connectors
  3. Vacuum leaks
  4. Exhaust system leaks
  5. ECM malfunction

Symptoms of P0150 Infiniti

  1. Decreased fuel efficiency
  2. Rough idle or hesitation during acceleration
  3. Check Engine Light illuminated
  4. Failed emissions test
  5. Engine misfires

How to Fix P0150 Infiniti

  1. Use an OBD-II scanner to confirm the P0150 code and pinpoint the issue.
  2. Inspect the oxygen sensor and wiring for any visible damage or corrosion.
  3. Replace the oxygen sensor if it is faulty, ensuring the new sensor is compatible with the vehicle.
  4. Clear the code from the ECM memory using the OBD-II scanner.
  5. Test drive the vehicle to ensure the issue has been resolved and the Check Engine Light does not reappear.

Cost to Fix P0150 Infiniti

The typical repair costs for addressing the P0150 code on an Infiniti vehicle can range from $200 to $500, including parts and labor. However, it's 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, with rates potentially higher in metropolitan areas or at dealerships, and lower at independent shops. It's recommended to obtain local quotes for a more accurate estimate.

Tech Notes for P0150 Infiniti

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



For Infiniti models before 2005 see: P0150 Infiniti

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 in the range other than approx. 1.5V.

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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.

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