AutoCodes – Buick – P014E Buick

P014E Buick Code - Oxygen Sensor Slow Response Rich To Lean 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: P014E Buick indicates Oxygen Sensor Slow Response Rich To Lean 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.

Save to My Repairs My Repairs

AI answers can be wrong. Verify repairs with testing. Open full chat

Code Popularity 1,050

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
Add Comment

💬 Need more help? Ask Coddy for instant answers — it's free!

Code P014E 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 P014E Buick - Oxygen Sensor Slow Response Rich To Lean Bank 2 sensor 1 - AutoCodes.com — P014E Buick Code - Oxygen Sensor Slow Response Rich To Lean Bank 2 sensor 1

What does this mean?

What are the Possible Causes of the DTC P014E 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 P014E 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 P014E 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 P014E Buick code?

Need more information on how to fix the P014E Buick code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the P014E Buick code diagnosed by a professional: Find a repair shop in your area

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 P014E Buick Code

1. What are the common symptoms of OBDII code P014E in a Buick?

- Common symptoms include poor fuel economy, rough idling, engine hesitation, and potentially a check engine light.

2. What causes the OBDII code P014E in a Buick?

- The code is usually triggered by a slow response from the oxygen sensor located in Bank 2 Sensor 1, indicating a rich to lean condition.

3. How can I diagnose the OBDII code P014E in my Buick?

- Diagnosis typically involves using an OBDII scanner to read the code, inspecting the oxygen sensor wiring, and performing a sensor response test.

4. Can a dirty or faulty oxygen sensor cause the P014E code in a Buick?

- Yes, a dirty or malfunctioning oxygen sensor in Bank 2 Sensor 1 can lead to a slow response, triggering the code.

5. What are the repair options for the OBDII code P014E in a Buick?

- Repair options may include cleaning the oxygen sensor, replacing the oxygen sensor, addressing any wiring issues, or correcting the rich to lean condition.

6. Is it safe to drive with the P014E code illuminated in a Buick?

- It is generally safe to drive with the code, but it is recommended to address the issue promptly to prevent potential damage to the engine or catalytic converter.

7. Can a software update fix the OBDII code P014E in a Buick?

- In some cases, a software update from the manufacturer may address the code, but it is more likely that physical repairs or sensor replacement will be necessary.

8. How long does it typically take to repair the OBDII code P014E in a Buick?

- The repair time can vary depending on the exact cause, but it may take anywhere from 30 minutes to a few hours to address the issue.

9. Will resetting the check engine light make the OBDII code P014E disappear in a Buick?

- Resetting the check engine light may temporarily clear the code, but if the underlying issue is not addressed, the code is likely to reappear.

10. Can I fix the OBDII code P014E in my Buick myself, or should I seek professional help?

- While some DIY enthusiasts may be able to address the issue themselves, it is recommended to seek professional help, especially if you are not familiar with automotive repairs involving oxygen sensors.