P0133 2009 Nissan Pathfinder Code - Air Fuel Ratio Circuit Slow Response 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
- P0133 2009 Nissan Pathfinder indicates Air Fuel Ratio Circuit Slow Response 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.
Code P0133 2009 Nissan Pathfinder Description
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 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).
What are the Possible Causes of the DTC P0133 2009 Nissan Pathfinder?
- 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 P0133 2009 Nissan Pathfinder?
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.
Code Tech Notes
What is the Cost to Diagnose the Code?
Labor: 1.0
To diagnose the P0133 2009 Nissan Pathfinder 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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Frequently Asked Questions about P0133 2009 Nissan Pathfinder Code
1. What are the common symptoms of OBDII code P0133 on a 2009 Nissan Pathfinder?
- Common symptoms of code P0133 include decreased fuel efficiency, rough idling, and potential stalling of the vehicle.
2. What does the OBDII code P0133 "Air Fuel Ratio Circuit Slow Response Bank 1 Sensor 1" mean for a 2009 Nissan Pathfinder?
- This code indicates that the oxygen sensor (sensor 1) in bank 1 is not responding as quickly as expected to changes in the air-fuel ratio.
3. What are the possible causes of OBDII code P0133 on a 2009 Nissan Pathfinder?
- Possible causes of P0133 include a faulty oxygen sensor, wiring or connector issues, exhaust leaks, or an engine vacuum leak.
4. How can I diagnose the OBDII code P0133 on my 2009 Nissan Pathfinder?
- To diagnose P0133, you can use a scan tool to monitor the oxygen sensor's performance, visually inspect the sensor and its connections, and check for any exhaust or vacuum leaks.
5. Can I continue to drive my 2009 Nissan Pathfinder with OBDII code P0133?
- It is not recommended to drive your vehicle with code P0133 as it can lead to further damage to the engine and affect its performance.
6. How do I repair OBDII code P0133 on a 2009 Nissan Pathfinder?
- Repairing P0133 may involve replacing the oxygen sensor, repairing any wiring or connector issues, fixing exhaust leaks, or addressing any vacuum leaks in the engine.
7. Is it possible to reset the OBDII code P0133 on a 2009 Nissan Pathfinder without fixing the underlying issue?
- While you can clear the code with a scan tool, it will likely return if the underlying issue causing P0133 is not addressed.
8. How much does it typically cost to repair OBDII code P0133 on a 2009 Nissan Pathfinder?
- The cost to repair P0133 can vary depending on the specific issue, but it may range from $100 to $300 for parts and labor.
9. How often should the oxygen sensors be replaced on a 2009 Nissan Pathfinder to prevent OBDII code P0133?
- Oxygen sensors typically last around 100,000 miles, but it's a good idea to inspect and potentially replace them every 60,000 to 80,000 miles to prevent issues like P0133.
10. Will fixing OBDII code P0133 improve the overall performance and fuel efficiency of my 2009 Nissan Pathfinder?
- Yes, addressing and fixing P0133 can help improve the vehicle's performance, fuel efficiency, and overall drivability.
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