FAULTBASE
Error CodesASKCars
© 2025 FAULTBASE
All rights reserved.
v2.0.0 • Production
ContactPrivacyImpressum
Home/Cars/Honda/Accord/10th Generation (2018-2022)/how to fix P0133 code on Honda Accord 10th Generation (2018-2022)?

how to fix P0133 code on Honda Accord 10th Generation (2018-2022)?

Honda Accord 10th Generation (2018-2022)

Error Codes
Severity: mediumDifficulty: mediumError Code: P01331-2 hours
3 min read
489 words

Problem Statement

Learn how to diagnose and fix P0133 code related to the upstream O2 sensor in Honda Accord 10th Generation (2018-2022). Step-by-step guide included.

Error Code
P0133
Affected Component
Exhaust System
Estimated Time
1-2 hours

Safety Warnings

  • ⚠Disconnect the battery before working on electrical systems.
  • ⚠Allow the engine to cool before starting repairs on the exhaust system.

Symptoms

  • •Check engine light illuminated
  • •Decreased fuel efficiency
  • •Rough engine idle
  • •Increased emissions
  • •Engine stalling or hesitation during acceleration

Diagnostic Steps

  1. 1Scan the vehicle's onboard diagnostic system using an OBD-II scanner to confirm the P0133 code.
  2. 2Inspect the wiring and connectors leading to the upstream O2 sensor for damage, corrosion, or loose connections.
  3. 3Check the O2 sensor's voltage output using a multimeter while the engine is running.
  4. 4Monitor the fuel trim values to see if they are within the manufacturer's specifications.
  5. 5Inspect the exhaust system for leaks that may affect sensor readings.
  6. 6Check the engine coolant temperature sensor to ensure it is functioning correctly.

Solution

Solution

1. Preparation

  • Gather necessary tools and parts.
  • Disconnect the negative battery terminal to prevent electrical shorts.
  • Ensure the engine is cool before starting work.

2. Replace the Upstream O2 Sensor

  1. Locate the Upstream O2 Sensor:
    • Locate the O2 sensor on the exhaust manifold or near the catalytic converter.
  2. Remove the O2 Sensor:
    • Use an O2 sensor socket or wrench to unscrew the sensor from its mounting.
    • If stubborn, apply penetrating oil and allow it to sit for a few minutes.
  3. Install the New O2 Sensor:
    • Apply anti-seize compound to the threads of the new sensor (if not pre-applied).
    • Screw the new O2 sensor into place and torque it to the manufacturer’s specifications (usually around 30-40 ft-lbs).
  4. Reconnect Electrical Connector:
    • Ensure the connector clicks securely into place without damaging the wiring.

3. Clear the Codes

  • Reconnect the negative battery terminal.
  • Use the OBD-II scanner to clear the P0133 code from the vehicle’s computer.

4. Test Drive the Vehicle

  • Take the vehicle for a test drive to ensure the engine runs smoothly and the code does not reappear.

Verification

After completing the repair, verify that the issue has been resolved:

  • ✓Test the affected component to ensure it functions correctly
  • ✓Check for any error codes or warning lights
  • ✓Monitor the vehicle for a few days to ensure the issue does not recur

Prevention Tips

To prevent this issue from occurring again:

  • •Follow the manufacturer's recommended maintenance schedule
  • •Address warning signs early before they develop into major issues
  • •Use quality parts and fluids recommended for your vehicle
  • •Keep detailed records of all repairs and maintenance

Tools & Equipment Required

  • •OBD-II scanner
  • •O2 sensor socket or wrench
  • •Multimeter
  • •Torque wrench
  • •Penetrating oil

Parts Required

  • •Upstream O2 sensor

Additional Information

Error Code
P0133
Affected Component
Exhaust System
Estimated Time
1-2 hours
Difficulty
medium
Severity
medium
Tools Required
5 items
Parts Required
1 item

Related Faults

  1. my Honda Accord keeps blowing fuses, what could be the problem

    Learn how to diagnose and fix repeated fuse blowouts in Honda Accord. Step-by-step guide with diagnostic procedures and repair instructions.

    Electrical5 symptoms

  2. why does my Honda Accord smell musty inside

    Learn how to diagnose and fix musty smells inside your Honda Accord. Step-by-step guide with symptoms, diagnostic steps, and repair instructions.

    HVAC6 symptoms

  3. my Honda Accord keeps blowing fuses, what could be the problem?

    Learn how to diagnose and fix frequent blown fuses in Honda Accord. Step-by-step guide with diagnostic procedures and repair instructions.

    Electrical5 symptoms

  4. my Honda Accord ABS light is on and traction control disabled what should I do

    Learn how to diagnose and fix ABS light issues and traction control disablement in Honda Accord. Step-by-step guide with diagnostic procedures and repair instructions.

    Brakes5 symptoms

  5. my Honda Accord battery dies overnight what could be the cause

    Learn how to diagnose and fix the issue of your Honda Accord battery dying overnight. Step-by-step guide with symptoms, diagnostic steps, and solutions.

    Electrical5 symptoms

  6. how to troubleshoot a Honda Accord that won’t shift out of park

    Learn how to troubleshoot and fix a Honda Accord that won't shift out of park. Step-by-step guide with diagnostic steps and repair instructions.

    Transmission5 symptoms

Share this solution

Comments

Sign in to share your thoughts

Sign In

No comments yet

Be the first to share your thoughts

Back to Generation