AutoCodes – Nissan – P0131 Nissan

P0131 Nissan Code - Air Fuel Ratio Circuit Low Bank 1 Sensor 1

Quick Answer

The Air Fuel Ratio (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 is open or shorted, Air fuel ratio (A/F) sensor 1 bank 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: P0131 Nissan indicates Air Fuel Ratio Circuit Low Bank 1 Sensor 1.
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 is open or shorted, Air fuel ratio (A/F) sensor 1 bank 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 19,819

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 May 26, 2022

Description
Step-by-Step Diagnostic Guide
Possible Causes
How To Fix
Tech Notes
Cost to Diagnose
Comments
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Code P0131 Nissan Description

The Air Fuel Ratio (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 Î»= 1, but also in the lean and rich range. Together with its control electronics, the sensor outputs a clear, continuous signal throughout a wide range (0.7 < Î» < 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 Î» = 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 - 800Â°C (1,292 - 1,472Â°F).

OBDII Code P0131 Nissan - Air Fuel Ratio Circuit Low Bank 1 Sensor 1 - AutoCodes.com — P0131 Nissan Code - Air Fuel Ratio Circuit Low Bank 1 Sensor 1

What does this mean?

What are the Possible Causes of the DTC P0131 Nissan?

Faulty Air fuel ratio (A/F) sensor 1 bank 1
Air fuel ratio (A/F) sensor 1 bank 1 harness is open or shorted
Air fuel ratio (A/F) sensor 1 bank 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 P0131 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

Replacing the Air fuel ratio (A/F) sensor 1 bank 1 usually takes care of the problem.

For Nissan models before 2005 see: P0131 Nissan

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the P0131 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.

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Information for Specific Nissan Models

P0131 2006 Nissan Maxima — Air Fuel Ratio Circuit Low Bank 1 Sensor 1
P0131 2007 Nissan Maxima — Air Fuel Ratio Circuit Low Bank 1 Sensor 1
P0131 2008 Nissan Maxima — Air Fuel Ratio Circuit Low Bank 1 Sensor 1
P0131 2006 Nissan Pathfinder — Air Fuel Ratio Circuit Low Bank 1 Sensor 1
P0131 2007 Nissan Pathfinder — Air Fuel Ratio Circuit Low Bank 1 Sensor 1
P0131 2008 Nissan Pathfinder — Air Fuel Ratio Circuit Low Bank 1 Sensor 1
P0131 2009 Nissan Pathfinder — Air Fuel Ratio Circuit Low Bank 1 Sensor 1
P0131 2010 Nissan Pathfinder — Air Fuel Ratio Circuit Low Bank 1 Sensor 1
P0131 2011 Nissan Pathfinder — Air Fuel Ratio Circuit Low Bank 1 Sensor 1
P0131 2012 Nissan Pathfinder — Air Fuel Ratio Circuit Low Bank 1 Sensor 1
P0131 2008 Nissan Rogue — O2 Sensor Circuit Low Bank 1 Sensor 1
P0131 2009 Nissan Rogue — O2 Sensor Circuit Low Bank 1 Sensor 1
P0131 2010 Nissan Rogue — O2 Sensor Circuit Low Bank 1 Sensor 1
P0131 2011 Nissan Rogue — O2 Sensor Circuit Low Bank 1 Sensor 1
P0131 2012 Nissan Rogue — O2 Sensor Circuit Low Bank 1 Sensor 1
P0131 2013 Nissan Rogue — O2 Sensor Circuit Low Bank 1 Sensor 1
P0131 2007 Nissan Sentra — Air Fuel Ratio Circuit Low Bank 1 Sensor 1
P0131 2008 Nissan Sentra — Air Fuel Ratio Circuit Low Bank 1 Sensor 1
P0131 2009 Nissan Sentra — Air Fuel Ratio Circuit Low Bank 1 Sensor 1
P0131 2010 Nissan Sentra — Air Fuel Ratio Circuit Low Bank 1 Sensor 1
P0131 2011 Nissan Sentra — Air Fuel Ratio Circuit Low Bank 1 Sensor 1
P0131 2012 Nissan Sentra — Air Fuel Ratio Circuit Low Bank 1 Sensor 1

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.