Engine-CodesDodge – P0131 Dodge

P0131 Dodge Code - O2 Sensor Circuit Low Bank 1 Sensor 1

Quick Answer

The O2 sensor, or oxygen sensor, is a crucial component of a vehicle's emissions control system. Common causes include Faulty O2 sensor, Damaged or corroded sensor wiring, ECM software issue. 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 Dodge indicates O2 Sensor Circuit Low Bank 1 Sensor 1.
Common causes
Common causes include Faulty O2 sensor, Damaged or corroded sensor wiring, ECM software issue.
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.
Table of contents Created and updated by William Orellana on Sep 08, 2024
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Code P0131 Dodge Description

The O2 sensor, or oxygen sensor, is a crucial component of a vehicle's emissions control system. The P0131 diagnostic trouble code (DTC) specifically relates to an issue with the O2 sensor circuit on Bank 1 Sensor 1. Bank 1 refers to the side of the engine where the number 1 cylinder is located, while Sensor 1 indicates that it is the primary sensor located before the catalytic converter.

OBDII Code P0131 Dodge - O2 Sensor Circuit Low Bank 1 Sensor 1
P0131 Dodge Code - O2 Sensor Circuit Low Bank 1 Sensor 1

Common Causes of P0131 Dodge

  1. Faulty O2 sensor
  2. Damaged or corroded sensor wiring
  3. ECM software issue
  4. Exhaust system leaks
  5. Vacuum leaks

Symptoms of P0131 Dodge

  1. Decreased fuel efficiency
  2. Rough idling or stalling
  3. Engine misfires
  4. Increased emissions
  5. Check Engine Light illuminated

How to Fix P0131 Dodge

  1. Begin by conducting a visual inspection of the O2 sensor and its wiring to check for any visible damage or corrosion.
  2. Test the O2 sensor using a multimeter to determine if it is functioning within the specified voltage range.
  3. If the O2 sensor is faulty, replace it with a new sensor compatible with your vehicle's make and model.
  4. Check and repair any damaged wiring connecting the sensor to the ECM.
  5. Clear the DTC and reset the ECM to ensure the code does not reappear after the repair.

Cost to Fix P0131 Dodge

The cost of repairing a P0131 code can vary depending on the specific cause of the issue. Generally, replacing an O2 sensor can cost between $100 to $200 for the part, with additional labor costs ranging from $50 to $150. Overall, including parts and labor, the repair for a P0131 code can typically range from $150 to $400. However, it's important to note that prices can vary based on location, vehicle make and model, and labor rates at the auto repair shop.

Tech Notes for P0131 Dodge

Replacing the O2 Sensor 1 usually takes care of the problem.

There is a Factory Service Bulletin for following Dodge models:
2005-2006 Dodge Magnum
2005-2006 Dodge Charger
Dodge Factory Service Bulletin OBDII Code P0131

When is the Code Detected?

The voltage signal from the sensor is lower than the specified time.

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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.

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