AutoCodes – Honda – P0133 1999 Honda Civic

P0133 1999 Honda Civic Code - O2 Sensor Circuit Slow Response Bank 1 Sensor 1

Quick Answer

The front heated oxygen sensor (or O2 sensor 1) is placed into the exhaust manifold. Common causes include Faulty Front Heated Oxygen Sensor Bank 1, Front Heated Oxygen Sensor Bank 1 harness is open or shorted, Front Heated Oxygen Sensor 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 1999 Honda Civic indicates O2 Sensor Circuit Slow Response Bank 1 Sensor 1.
Common causes: Common causes include Faulty Front Heated Oxygen Sensor Bank 1, Front Heated Oxygen Sensor Bank 1 harness is open or shorted, Front Heated Oxygen Sensor 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 6,785

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 Jun 14, 2020

Description
Step-by-Step Diagnostic Guide
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code P0133 1999 Honda Civic Description

The front heated oxygen sensor (or O2 sensor 1) is placed into the exhaust manifold. It detects the amount of oxygen in the exhaust gas compared to the outside air. The heated oxygen sensor 1 has a closed-end tube made of ceramic zirconia. The zirconia generates voltage from approximately 1V in richer conditions to 0V in leaner conditions. The heated oxygen sensor 1 signal is sent to the Engine Control Module (ECM). The ECM adjusts the injection pulse duration to achieve the ideal air-fuel ratio. The ideal air-fuel ratio occurs near the radical change from 1V to 0V.

OBDII Code P0133 1999 Honda Civic - O2 Sensor Circuit Slow Response Bank 1 Sensor 1 - AutoCodes.com — P0133 1999 Honda Civic Code - O2 Sensor Circuit Slow Response Bank 1 Sensor 1

What does this mean?

What are the Possible Causes of the DTC P0133 1999 Honda Civic?

Faulty Front Heated Oxygen Sensor Bank 1
Front Heated Oxygen Sensor Bank 1 harness is open or shorted
Front Heated Oxygen Sensor 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 1999 Honda Civic?

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 is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the P0133 1999 Honda Civic 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.

Need more information about the P0133 1999 Honda Civic code?

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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.

Frequently Asked Questions about P0133 1999 Honda Civic Code

1. What does the OBDII code P0133 mean on a 1999 Honda Civic?

- P0133 indicates that the oxygen sensor in bank 1 sensor 1 is not responding as quickly as it should to changes in the air/fuel mixture, suggesting a potential issue with the sensor or its circuit.

2. What are common symptoms of code P0133 in a 1999 Honda Civic?

- Symptoms include a check engine light, rough engine idle, decreased fuel efficiency, and possibly a noticeable drop in engine performance.

3. What causes the OBDII code P0133 to appear on a 1999 Honda Civic?

- Common causes include a faulty oxygen sensor, leaks in the exhaust system, a dirty or defective mass airflow sensor, or problems with the wiring or connectors leading to the oxygen sensor.

4. How can I fix the OBDII code P0133 on my 1999 Honda Civic?

- Repairing this code may involve replacing the oxygen sensor, repairing any leaks in the exhaust system, cleaning or replacing the mass airflow sensor, or repairing damaged wiring or connectors.

5. Is it safe to drive my 1999 Honda Civic with the P0133 code?

- While you can usually still drive the vehicle, doing so with a malfunctioning oxygen sensor can lead to reduced fuel efficiency, increased emissions, and potentially more severe engine problems if left unaddressed.

6. How do I identify which oxygen sensor is Bank 1 Sensor 1 in my 1999 Honda Civic?

- In a 1999 Honda Civic, Bank 1 Sensor 1 refers to the primary oxygen sensor located before the catalytic converter on the engine's exhaust manifold.

7. What tools are needed to diagnose the P0133 code on a 1999 Honda Civic?

- Tools needed include an OBDII scanner to read the code and live data, a digital multimeter for checking sensor voltages and resistances, and possibly a vacuum gauge to check for exhaust leaks.

8. Can a dirty air filter cause the P0133 code in a 1999 Honda Civic?

- While a dirty air filter itself might not directly trigger this code, it can contribute to overall engine performance issues that exacerbate the conditions leading to P0133, such as improper air/fuel mixtures.

9. How often should the oxygen sensor be replaced in a 1999 Honda Civic to avoid issues like P0133?

- Oxygen sensors are generally recommended to be replaced every 60,000 to 90,000 miles. However, sensor longevity can vary based on driving conditions and vehicle maintenance.

10. What is the cost of fixing the P0133 code in a 1999 Honda Civic?

- The cost can vary widely depending on whether the issue is a faulty sensor or a more complex problem like wiring issues. Replacing an oxygen sensor can cost from $200 to $300, but prices can be higher if additional repairs are needed.