AutoCodes – GMC – P014F GMC

P014F GMC 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 GMC 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 1,256

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 GMC 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 GMC - Oxygen Sensor Slow Response Lean To Rich Bank 2 sensor 1 - AutoCodes.com — P014F GMC 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 GMC?

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 GMC?

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 GMC 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 GMC 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 GMC Code

1. What are the common symptoms of OBDII code P014F (GMC)?

- Common symptoms include poor fuel economy, rough idling, engine misfires, and potential stalling.

2. What can cause the OBDII code P014F (GMC) to trigger?

- The code is triggered when the oxygen sensor in Bank 2 sensor 1 responds slowly in transitioning from a lean to rich fuel mixture.

3. How does a slow response from the oxygen sensor affect the engine performance?

- A slow response from the oxygen sensor can lead to incorrect fuel mixture adjustments by the engine control module, resulting in poor performance and decreased fuel efficiency.

4. What are some possible causes of a slow response from the Bank 2 sensor 1 oxygen sensor?

- Common causes include a faulty oxygen sensor, wiring or connector issues, vacuum leaks, exhaust system leaks, or a malfunctioning engine control module.

5. How can I diagnose the OBDII code P014F (GMC) related to the Bank 2 sensor 1 oxygen sensor?

- Diagnosing the issue involves performing a visual inspection of the sensor and its connections, checking for any leaks in the exhaust system, and using a scan tool to monitor sensor data.

6. Can I drive my vehicle with the OBDII code P014F (GMC) present?

- It is generally not recommended to drive with this code present, as it can lead to further engine damage and decreased fuel efficiency.

7. How can I repair the OBDII code P014F (GMC) related to Bank 2 sensor 1 oxygen sensor?

- Repair options include replacing the oxygen sensor, repairing any wiring or connector issues, fixing vacuum or exhaust leaks, and reprogramming the engine control module if necessary.

8. Will resetting the fault codes make the OBDII code P014F (GMC) go away?

- Resetting the fault codes may temporarily clear the code, but if the underlying issue is not addressed, the code is likely to return after driving the vehicle for some time.

9. Is it possible to clean the Bank 2 sensor 1 oxygen sensor to fix the slow response issue?

- Cleaning the oxygen sensor may provide a temporary solution, but if the sensor is faulty or damaged, it is recommended to replace it for a more permanent fix.

10. How can regular maintenance help prevent the occurrence of OBDII code P014F (GMC) in the future?

- Regular maintenance, including checking and replacing oxygen sensors as recommended by the manufacturer, can help prevent issues like slow sensor response and ensure optimal engine performance.