P0133 Code - O2 Sensor Circuit Slow Response Bank 1 Sensor 1

Quick Answer

The O2 sensor, also known as the oxygen sensor, is a vital component of a vehicle's emission control system. Common causes include Faulty O2 sensor, Wiring issues or poor connections, 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 indicates O2 Sensor Circuit Slow Response Bank 1 Sensor 1.

Common causes

Common causes include Faulty O2 sensor, Wiring issues or poor connections, 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.

• Description
• Common Causes
• Symptoms
• How To Fix
• Cost to Fix
• Tech Notes
• FAQs
• Comments
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Common Causes of P0133

Symptoms of P0133

How to Fix P0133

Cost to Fix P0133

Tech Notes for P0133

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Code P0133 Information for Specific Makes

• P0133 Acura — Air/Fuel Ratio Sensor 1 Malfunction/Slow Response
• P0133 Audi — HO2S11 Sensor Circuit Slow Response
• P0133 Buick — HO2S Slow Response Bank 1 Sensor 1
• P0133 Cadillac — HO2S Slow Response Bank 1 Sensor 1
• P0133 Chevrolet — HO2S Slow Response Bank 1 Sensor 1
• P0133 Chrysler — O2 Sensor Circuit Slow Response Bank 1 Sensor 1
• P0133 Dodge — O2 Sensor Circuit Slow Response Bank 1 Sensor 1
• P0133 Ford — O2 Sensor Circuit Slow Response Bank 1 Sensor 1
• P0133 GMC — HO2S Slow Response Bank 1 Sensor 1
• P0133 Honda — Air/Fuel Ratio Sensor 1 Malfunction/Slow Response
• P0133 Hyundai — O2 Sensor Circuit Slow Response Bank 1 Sensor 1
• P0133 Infiniti — O2 Sensor Circuit Slow Response Bank 1 Sensor 1
• P0133 Infiniti — Air Fuel Ratio Circuit Slow Response Bank 1 Sensor 1
• P0133 Isuzu — HO2S Slow Response Sensor 1
• P0133 Jaguar — O2 Sensor Circuit Slow Response Bank 1 Sensor 1
• P0133 Jeep — O2 Sensor Circuit Slow Response Bank 1 Sensor 1
• P0133 KIA — HO2S11 Circuit Slow Response
• P0133 Lexus — HO2S11 Circuit Slow Response
• P0133 Lincoln — O2 Sensor Circuit Slow Response Bank 1 Sensor 1
• P0133 Mazda — HO2S Circuit Slow Response
• P0133 Mercedes-Benz — O2 Sensor Circuit Slow Response Bank 1 Sensor 1
• P0133 Mercury — O2 Sensor Circuit Slow Response Bank 1 Sensor 1
• P0133 Mitsubishi — Cylinder 1-4 Heated Oxygen Front Sensor Circuit Slow Response
• P0133 Nissan — O2 Sensor Circuit Slow Response Bank 1 Sensor 1
• P0133 Nissan — Air Fuel Ratio Circuit Slow Response Bank 1 Sensor 1
• P0133 Pontiac — HO2S Slow Response Bank 1 Sensor 1
• P0133 Saturn — HO2S Slow Response Bank 1 Sensor 1
• P0133 Scion — Heated Oxygen Sensor Circuit Slow Response Bank 1 Sensor 1
• P0133 Subaru — Oxygen Sensor Circuit Slow Response Bank 1 Sensor 1
• P0133 Suzuki — O2 Sensor Circuit Slow Response Bank 1 Sensor 1
• P0133 Toyota — HO2S11 Circuit Slow Response
• P0133 Volkswagen — HO2S11 Sensor Circuit Slow Response
• P0133 Volvo — O2 Sensor Circuit Slow Response 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.

Frequently Asked Questions about P0133 Code

1. What are the common symptoms of OBDII code P0133?

- Common symptoms include decreased fuel efficiency, rough idling, hesitation or jerking during acceleration, and the illumination of the check engine light.

2. What does the OBDII code P0133 indicate?

- This code indicates that the O2 sensor located in Bank 1 Sensor 1 is not responding as quickly as expected, leading to potential issues with the air-fuel mixture.

3. What are the possible causes of O2 sensor circuit slow response (P0133)?

- Potential causes include a faulty O2 sensor, wiring or connector issues, exhaust leaks, vacuum leaks, engine misfires, or a malfunctioning PCM (powertrain control module).

4. How can I diagnose the O2 sensor circuit slow response issue?

- Diagnosing this issue typically involves using an OBDII scanner to read the code, checking the O2 sensor's live data, inspecting the sensor and its connections, and conducting tests to identify the root cause.

5. Can driving with OBDII code P0133 cause further damage to the vehicle?

- While driving with P0133 may not immediately harm the vehicle, prolonged driving with a faulty O2 sensor can lead to decreased fuel economy, engine performance issues, and potential damage to the catalytic converter.

6. How can I repair OBDII code P0133?

- Repair options may include replacing the O2 sensor, repairing or replacing damaged wiring or connectors, fixing any exhaust or vacuum leaks, addressing engine misfires, or reprogramming the PCM.

7. Is it safe to continue driving with the check engine light on due to code P0133?

- It is generally not recommended to ignore the check engine light, as it indicates a problem that needs attention. Continuing to drive with the light on may lead to reduced performance and fuel efficiency.

8. How much does it typically cost to repair OBDII code P0133?

- The cost of repairing P0133 can vary depending on the underlying issue, but it may range from $100 to $500 or more, including parts and labor.

9. Can I reset the check engine light after repairing OBDII code P0133?

- Once the underlying issue causing P0133 is fixed, the check engine light can be reset using an OBDII scanner to clear the trouble code and turn off the light.

10. How often does the O2 sensor need to be replaced to prevent OBDII code P0133 from recurring?

- O2 sensors typically have a lifespan of around 100,000 miles, but it's recommended to follow the manufacturer's guidelines for maintenance and replacement to prevent issues like P0133 from recurring.