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P0133 Nissan Code - Air Fuel Ratio Circuit Slow Response Bank 1 Sensor 1

Quick Answer

The P0133 diagnostic trouble code for Nissan vehicles indicates an issue with the Air Fuel Ratio Circuit Slow Response Bank 1 Sensor 1. Common causes include Worn-out or malfunctioning oxygen sensor, Faulty wiring or connections to the oxygen sensor, Exhaust leaks near the sensor. 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
P0133 Nissan indicates Air Fuel Ratio Circuit Slow Response Bank 1 Sensor 1.
Common causes
Common causes include Worn-out or malfunctioning oxygen sensor, Faulty wiring or connections to the oxygen sensor, Exhaust leaks near the sensor.
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.
What is this?
Table of contents Created and updated by William Orellana on Sep 09, 2024
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Code P0133 Nissan Description

The P0133 diagnostic trouble code for Nissan vehicles indicates an issue with the Air Fuel Ratio Circuit Slow Response Bank 1 Sensor 1. This code specifically points to a problem with the oxygen sensor located in the exhaust system before the catalytic converter on the side with cylinder 1. The oxygen sensor is responsible for monitoring the amount of oxygen in the exhaust gases and sending this information to the vehicle's engine control module (ECM) to adjust the air-fuel ratio for optimal combustion.

OBDII Code P0133 Nissan - Air Fuel Ratio Circuit Slow Response Bank 1 Sensor 1
P0133 Nissan Code - Air Fuel Ratio Circuit Slow Response Bank 1 Sensor 1

Common Causes of P0133 Nissan

  1. Worn-out or malfunctioning oxygen sensor
  2. Faulty wiring or connections to the oxygen sensor
  3. Exhaust leaks near the sensor
  4. Issues with the ECM or engine control module
  5. Contaminated fuel affecting the air-fuel ratio

Symptoms of P0133 Nissan

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

How to Fix P0133 Nissan

  1. Use an OBD-II scanner to confirm the P0133 code and identify the specific issue.
  2. Inspect the oxygen sensor and related wiring for damage or corrosion.
  3. Replace the oxygen sensor if it is faulty or not responding properly.
  4. Clear the error codes and reset the ECM to see if the issue is resolved.
  5. Test drive the vehicle to ensure the problem is fixed and the Check Engine Light does not reappear.

Cost to Fix P0133 Nissan

The cost of repairing a P0133 code can vary depending on the specific cause of the issue and the location of the repair. On average, replacing an oxygen sensor can cost between $100 and $300 for parts, with additional labor costs ranging from $50 to $150. Keep in mind that diagnostic time and labor rates at auto repair shops can vary, so it's recommended to check with local shops for a more accurate estimate.

What does this mean?

Tech Notes for P0133 Nissan

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



For Nissan models before 2005 see: P0133 Nissan

When is the Code Detected?

The Air Fuel Ratio (A/F) signal computed by Engine Control Module (ECM) from the A/F sensor 1 signal takes more than the specified time

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Information for Specific Nissan Models

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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