Engine-CodesInfiniti – P014F Infiniti

P014F Infiniti Code - Air Fuel Ratio Sensor Slow Response - Lean To Rich Bank 2 sensor 1

Quick Answer

The P014F diagnostic trouble code for Infiniti vehicles indicates an issue with the Air Fuel Ratio Sensor Slow Response - Lean To Rich on Bank 2 sensor 1. Common causes include Faulty air-fuel ratio sensor, Wiring or connector issues, 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
P014F Infiniti indicates Air Fuel Ratio Sensor Slow Response - Lean To Rich Bank 2 sensor 1.
Common causes
Common causes include Faulty air-fuel ratio sensor, Wiring or connector issues, 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.
Table of contents Created and updated by William Orellana on Sep 12, 2024
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Code P014F Infiniti Description

The P014F diagnostic trouble code for Infiniti vehicles indicates an issue with the Air Fuel Ratio Sensor Slow Response - Lean To Rich on Bank 2 sensor 1. This sensor is responsible for monitoring the air-fuel mixture in the exhaust system and sending feedback to the engine control module (ECM) to adjust the fuel delivery for optimal combustion. When the sensor responds slowly from a lean to rich condition on Bank 2 sensor 1, it can lead to inefficient fuel combustion, affecting the vehicle's performance and emissions.

OBDII Code P014F Infiniti - Air Fuel Ratio Sensor Slow Response - Lean To Rich Bank 2 sensor 1
P014F Infiniti Code - Air Fuel Ratio Sensor Slow Response - Lean To Rich Bank 2 sensor 1

Common Causes of P014F Infiniti

  1. Faulty air-fuel ratio sensor.
  2. Wiring or connector issues.
  3. Vacuum leaks in the intake system.
  4. Exhaust system leaks.
  5. ECM malfunction.

Symptoms of P014F Infiniti

  1. Check engine light illuminated on the dashboard.
  2. Decreased fuel efficiency.
  3. Engine running rough or misfiring.
  4. Increased emissions output.
  5. Reduced engine performance.

How to Fix P014F Infiniti

  1. Begin by diagnosing the specific cause of the slow response on Bank 2 sensor 1.
  2. Inspect the air-fuel ratio sensor for any signs of damage or malfunction.
  3. Check the wiring and connectors for any corrosion, fraying, or loose connections.
  4. Inspect the intake system for vacuum leaks and repair as necessary.
  5. Address any exhaust system leaks and reset the ECM to clear the code.

Cost to Fix P014F Infiniti

The typical repair costs for addressing a P014F code on an Infiniti vehicle can range from $200 to $500, including parts and labor. However, it's important to note that the 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 is recommended to obtain local quotes for a more accurate cost estimate.

Tech Notes for P014F Infiniti

Replacing the Air Fuel Ratio Bank 2 Sensor 1 usually takes care of the problem.

When is the Code Detected?

The response of the voltage signal from the sensor takes more than the specified time.

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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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