AutoCodes – Nissan – P1279 Nissan

P1279 Nissan Code - Air Fuel Ratio Sensor 1 Bank 1 Circuit Slow Response

Q: 1. What are the common symptoms of OBDII code P1279 on a Nissan?

The common symptoms of code P1279 include poor fuel economy, rough idling, hesitation or stalling during acceleration, and the illumination of the Check Engine Light.

Q: 2. What does the OBDII code P1279 for a Nissan indicate?

Code P1279 indicates a slow response from the Air Fuel Ratio Sensor 1 on Bank 1 in the vehicle's exhaust system.

Q: 3. What are the possible causes of OBDII code P1279 on a Nissan?

Possible causes of code P1279 include a faulty Air Fuel Ratio Sensor, wiring issues in the sensor circuit, exhaust system leaks, or a problem with the engine's air-fuel mixture.

Q: 4. How can I diagnose the OBDII code P1279 on my Nissan?

To diagnose code P1279, a technician will typically use a scan tool to retrieve the code and then perform a visual inspection of the sensor and its wiring. They may also conduct testing to ensure proper sensor operation.

Q: 5. Can I continue driving my Nissan with OBDII code P1279?

It is not recommended to continue driving your Nissan with code P1279, as it can lead to poor engine performance and potential damage if left unresolved. It is best to address the issue promptly.

Q: 6. How can I repair OBDII code P1279 on my Nissan?

Repairing code P1279 may involve replacing the Air Fuel Ratio Sensor 1 on Bank 1, repairing any damaged wiring, fixing exhaust leaks, or addressing any issues with the air-fuel mixture.

Q: 7. Is it safe to reset the Check Engine Light after fixing OBDII code P1279 on a Nissan?

Yes, once the underlying issue causing code P1279 has been resolved, it is safe to reset the Check Engine Light using a scan tool to clear the code.

Q: 8. How much does it typically cost to repair OBDII code P1279 on a Nissan?

The cost of repairing code P1279 can vary depending on the exact cause of the issue, but it may range from $200 to $500, including parts and labor.

Q: 9. Can a DIY enthusiast fix OBDII code P1279 on a Nissan?

While some DIY enthusiasts may be able to address code P1279 by replacing the Air Fuel Ratio Sensor themselves, it is recommended to consult a professional technician for an accurate diagnosis and repair.

Q: 10. How often does OBDII code P1279 occur in Nissan vehicles?

Code P1279 related to the Air Fuel Ratio Sensor 1 Bank 1 Circuit Slow Response is not as common as other OBDII codes but can still occur in Nissan vehicles, especially in older models or those with high mileage.

Quick Answer

The A/F sensor is a planar dual-cell limit current sensor. Common causes include Faulty Air fuel ratio (A/F) Sensor 1 Bank 1, Air fuel ratio (A/F) Sensor 1 Bank 1 Harness or connectors is open or shorted, Air fuel ratio (A/F) Sensor 1 Bank 1 circuit poor electrical connection. Severity is High - diagnose this code as soon as possible. Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.

What it means: P1279 Nissan indicates Air Fuel Ratio Sensor 1 Bank 1 Circuit Slow Response.
Common causes: Common causes include Faulty Air fuel ratio (A/F) Sensor 1 Bank 1, Air fuel ratio (A/F) Sensor 1 Bank 1 Harness or connectors is open or shorted, Air fuel ratio (A/F) Sensor 1 Bank 1 circuit poor electrical connection.
Severity: High - diagnose this code as soon as possible.
Can I drive?: Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.

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Code Popularity 43,729

How popular is this code, among other codes? Medium

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Intermediate (2 / 3)

What is this?

Table of contents Created and updated by William Orellana on Jul 28, 2019

Description
Possible Causes
How To Fix
Tech Notes ▶
Cost to Diagnose
FAQs
Comments
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Code P1279 Nissan Description

The A/F sensor is a planar dual-cell limit current sensor. The sensor element of the A/F sensor is the combination of a Nernst concentration cell (sensor cell) with an oxygen-pump cell, which transports ions. It has a heater in the element.
The sensor is capable of precise measurement λ= 1, but also in the lean and rich range. Together with its control electronics, the sensor outputs a clear, continuous signal throughout a wide λ range (0.7 < λ < air).
The exhaust gas components diffuse through the diffusion gap at the electrode of the oxygen pump and Nernst concentration cell, where they are brought to thermodynamic balance.
An electronic circuit controls the pump current through the oxygen-pump cell so that the composition of the exhaust gas in the diffusion gap remains constant at λ = 1. Therefore, the A/F sensor is able to indicate air/fuel ratio by this pumping of current. In addition, a heater is integrated in the sensor to ensure the required operating temperature of 700 - 800 C (1,292 - 1,472 F).

OBDII Code P1279 Nissan - Air Fuel Ratio Sensor 1 Bank 1 Circuit Slow Response - AutoCodes.com — P1279 Nissan Code - Air Fuel Ratio Sensor 1 Bank 1 Circuit Slow Response

What does this mean?

What are the Possible Causes of the DTC P1279 Nissan?

Faulty Air fuel ratio (A/F) Sensor 1 Bank 1
Air fuel ratio (A/F) Sensor 1 Bank 1 Harness or connectors is open or shorted
Air fuel ratio (A/F) Sensor 1 Bank 1 circuit poor electrical connection
Fuel pressure
Faulty Fuel injector
Intake air leaks
Exhaust Gas leaks
Faulty PVC
Faulty Air Flow Meter

How to Fix the DTC P1279 Nissan?

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 does this mean?

Code Tech Notes

User Submitted Video

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the P1279 Nissan 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 P1279 Nissan code?

Need more information on how to fix the P1279 Nissan code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the P1279 Nissan code diagnosed by a professional: Find a repair shop in your area

Information for Specific Nissan Models

P1279 2005 Nissan Altima Sedan — Air Fuel Ratio Sensor 1 Bank 1 Circuit Slow Response
P1279 2004 Nissan Maxima — Air Fuel Ratio Sensor 1 Bank 1 Circuit Slow Response
P1279 2005 Nissan Maxima — Air Fuel Ratio Sensor 1 Bank 1 Circuit Slow Response
P1279 2002 Nissan Sentra — Air Fuel Ratio Sensor 1 Bank 1 Circuit Slow Response
P1279 2003 Nissan Sentra — Air Fuel Ratio Sensor 1 Bank 1 Circuit Slow Response
P1279 2004 Nissan Sentra — Air Fuel Ratio Sensor 1 Bank 1 Circuit Slow Response
P1279 2005 Nissan Sentra — Air Fuel Ratio Sensor 1 Bank 1 Circuit Slow Response
P1279 2006 Nissan Sentra — Air Fuel Ratio Sensor 1 Bank 1 Circuit Slow Response

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 P1279 Nissan Code

1. What are the common symptoms of OBDII code P1279 on a Nissan?

The common symptoms of code P1279 include poor fuel economy, rough idling, hesitation or stalling during acceleration, and the illumination of the Check Engine Light.

2. What does the OBDII code P1279 for a Nissan indicate?

Code P1279 indicates a slow response from the Air Fuel Ratio Sensor 1 on Bank 1 in the vehicle's exhaust system.

3. What are the possible causes of OBDII code P1279 on a Nissan?

Possible causes of code P1279 include a faulty Air Fuel Ratio Sensor, wiring issues in the sensor circuit, exhaust system leaks, or a problem with the engine's air-fuel mixture.

4. How can I diagnose the OBDII code P1279 on my Nissan?

To diagnose code P1279, a technician will typically use a scan tool to retrieve the code and then perform a visual inspection of the sensor and its wiring. They may also conduct testing to ensure proper sensor operation.

5. Can I continue driving my Nissan with OBDII code P1279?

It is not recommended to continue driving your Nissan with code P1279, as it can lead to poor engine performance and potential damage if left unresolved. It is best to address the issue promptly.

6. How can I repair OBDII code P1279 on my Nissan?

Repairing code P1279 may involve replacing the Air Fuel Ratio Sensor 1 on Bank 1, repairing any damaged wiring, fixing exhaust leaks, or addressing any issues with the air-fuel mixture.

7. Is it safe to reset the Check Engine Light after fixing OBDII code P1279 on a Nissan?

Yes, once the underlying issue causing code P1279 has been resolved, it is safe to reset the Check Engine Light using a scan tool to clear the code.

8. How much does it typically cost to repair OBDII code P1279 on a Nissan?

The cost of repairing code P1279 can vary depending on the exact cause of the issue, but it may range from $200 to $500, including parts and labor.

9. Can a DIY enthusiast fix OBDII code P1279 on a Nissan?

While some DIY enthusiasts may be able to address code P1279 by replacing the Air Fuel Ratio Sensor themselves, it is recommended to consult a professional technician for an accurate diagnosis and repair.

10. How often does OBDII code P1279 occur in Nissan vehicles?

Code P1279 related to the Air Fuel Ratio Sensor 1 Bank 1 Circuit Slow Response is not as common as other OBDII codes but can still occur in Nissan vehicles, especially in older models or those with high mileage.