AutoCodes – Buick – P014F Buick

P014F Buick Code - Oxygen Sensor Slow Response Lean To Rich Bank 2 sensor 1

Quick Answer

The Powertrain Control Module (PCM) continuously monitors the Heated Oxygen Sensor (HO2S) activity for 100 seconds. Common causes include Faulty Heated Oxygen Bank 2 Sensor 1, Heated Oxygen Bank 2 Sensor 1 harness is open or shorted, Heated Oxygen Bank 2 Sensor 1 circuit poor electrical connection. 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 Buick indicates Oxygen Sensor Slow Response Lean To Rich Bank 2 sensor 1.
Common causes: Common causes include Faulty Heated Oxygen Bank 2 Sensor 1, Heated Oxygen Bank 2 Sensor 1 harness is open or shorted, Heated Oxygen Bank 2 Sensor 1 circuit poor electrical connection.
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 1,169

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 12, 2019

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code P014F Buick Description

The Powertrain Control Module (PCM) continuously monitors the Heated Oxygen Sensor (HO2S) activity for 100 seconds. During the monitor period the PCM counts the number of times that the HO2S responds from rich to lean and from lean to rich and adds the amount of time it took to complete all transitions. With this information, the PCM can determine the average time for all transitions. If the average response time is too slow, a DTC sets.
The PCM determines the lean to rich transition when the HO2S voltage changes from less than 300 mV to greater than 600 mV. The PCM determines the rich to lean transition when the HO2S voltage changes from more than 600 mV to less than 300 mV. An HO2S that responds too slowly is most likely defective.

OBDII Code P014F Buick - Oxygen Sensor Slow Response Lean To Rich Bank 2 sensor 1 - AutoCodes.com — P014F Buick Code - Oxygen Sensor Slow Response Lean To Rich Bank 2 sensor 1

What does this mean?

What are the Possible Causes of the DTC P014F Buick?

Faulty Heated Oxygen Bank 2 Sensor 1
Heated Oxygen Bank 2 Sensor 1 harness is open or shorted
Heated Oxygen Bank 2 Sensor 1 circuit poor electrical connection
Inappropriate fuel pressure
Faulty fuel injectors
Intake air leaks may be faulty
Exhaust gas leaks

How to Fix the DTC P014F Buick?

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 is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the P014F Buick 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 P014F Buick code?

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Need Help with the 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 P014F Buick Code

1. What does the OBDII code P014F mean on a Buick?

The P014F code indicates that the oxygen sensor on Bank 2, Sensor 1, is reporting a slow response when transitioning from a lean to rich condition.

2. What are the common symptoms of code P014F on a Buick?

Symptoms can include reduced fuel efficiency, poor engine performance, a rough idle, and the illumination of the check engine light.

3. What causes the P014F code to appear on a Buick?

Common causes include a faulty oxygen sensor, exhaust leaks, wiring or connection issues, or engine performance problems such as fuel delivery issues.

4. Which oxygen sensor is referenced in code P014F?

The code refers to the upstream oxygen sensor (Sensor 1) on Bank 2, which is the side of the engine opposite Bank 1.

5. Can I drive my Buick with the P014F code?

While the vehicle may still be drivable, ignoring this code can lead to decreased fuel efficiency, potential damage to the catalytic converter, and worsening engine performance.

6. How is the P014F code diagnosed?

A technician will typically use a scan tool to monitor live data from the oxygen sensor, inspect wiring and connections, and check for exhaust leaks or other engine-related issues.

7. How can I fix the P014F code on my Buick?

Repairs may include replacing the faulty oxygen sensor, repairing damaged wiring, fixing exhaust leaks, or addressing underlying engine performance issues.

8. How much does it cost to repair the P014F code on a Buick?

The cost can vary, but replacing an oxygen sensor typically ranges from $100 to $300, depending on parts and labor.

9. Can a dirty air filter cause the P014F code?

While unlikely, a dirty air filter can affect the air-fuel mixture, potentially exacerbating oxygen sensor issues. Itâ€™s worth inspecting and replacing the air filter if needed.

10. How can I prevent the P014F code from returning?

Regular maintenance, such as inspecting the oxygen sensors, checking for exhaust leaks, and ensuring proper engine performance, can help prevent this code from reoccurring.