FAULTBASE
Error CodesASKCars
© 2025 FAULTBASE
All rights reserved.
v2.0.0 • Production
ContactPrivacyImpressum
Home/Cars/Honda/Accord/9th Generation (2013-2017)/how to fix P0131 oxygen sensor code in Honda Accord 10th Generation (2018-2022)

how to fix P0131 oxygen sensor code in Honda Accord 10th Generation (2018-2022)

Honda Accord 9th Generation (2013-2017)

Error Codes
Severity: mediumDifficulty: mediumError Code: P01311-2 hours
3 min read
494 words

Problem Statement

Learn how to diagnose and fix P0131 oxygen sensor code in Honda Accord 10th Generation (2018-2022). Step-by-step guide with diagnostic procedures and repair instructions.

Error Code
P0131
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 working on exhaust components to avoid burns.

Symptoms

  • •Check engine light illuminated
  • •Poor fuel economy
  • •Rough idling or stalling
  • •Increased emissions
  • •Decreased engine performance

Diagnostic Steps

  1. 1Scan the vehicle's OBD-II system for error codes and note any additional codes present.
  2. 2Inspect the wiring and connectors of the upstream oxygen sensor for visible damage or corrosion.
  3. 3Test the oxygen sensor's voltage output using a multimeter while the engine is running.
  4. 4Check the oxygen sensor heater circuit for continuity and correct voltage.
  5. 5Inspect the exhaust system for leaks that could affect sensor readings.
  6. 6Verify the vehicle's fuel trim values using a scan tool to assess the air-fuel mixture.

Solution

Solution

1. Preparation

  • Gather all necessary tools and parts.
  • Disconnect the vehicle battery's negative terminal to ensure safety during repairs.

2. Remove the Faulty Oxygen Sensor

  • Locate the upstream oxygen sensor (typically found in the exhaust manifold).
  • Use a socket wrench with an oxygen sensor socket to carefully unscrew the sensor from its mounting.
  • Disconnect the electrical connector by pressing the release tab and pulling it apart.

3. Inspect and Clean

  • Check the threads of the oxygen sensor and the mounting hole for any debris or carbon build-up.
  • If necessary, clean the area with a wire brush and compressed air to ensure a proper seal upon reinstallation.

4. Install New Oxygen Sensor

  • Install the new oxygen sensor into the exhaust manifold by hand to avoid cross-threading.
  • Use the oxygen sensor socket to tighten it to the manufacturer's specified torque (typically around 30-40 lb-ft).
  • Reconnect the electrical connector until it clicks securely into place.

5. Reconnect Battery and Test

  • Reconnect the negative terminal of the battery.
  • Start the engine and allow it to reach operating temperature.

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
  • •Multimeter
  • •Oxygen sensor socket
  • •Socket wrench set
  • •Torque wrench
  • •Wire brush
  • •Compressed air

Parts Required

  • •New upstream oxygen sensor
  • •Electrical connector (if damaged)

Additional Information

Error Code
P0131
Affected Component
Exhaust System
Estimated Time
1-2 hours
Difficulty
medium
Severity
medium
Tools Required
7 items
Parts Required
2 items

Related Faults

  1. my Honda Accord shakes when I accelerate what's wrong

    Learn how to diagnose and fix shaking during acceleration in Honda Accord. Step-by-step guide with symptoms, diagnostic steps, and repair instructions.

    Suspension5 symptoms

  2. how to solve Honda Accord 8th Generation (2008-2012) AC not getting cold?

    Learn how to diagnose and fix AC not getting cold in Honda Accord 8th Generation (2008-2012). Step-by-step guide with diagnostic procedures and repair instructions.

    HVAC5 symptoms

  3. my Honda Accord dashboard lights are dim, how can I brighten them?

    Learn how to brighten dim dashboard lights in your Honda Accord. Follow our step-by-step guide for diagnosis and repair instructions.

    Electrical4 symptoms

  4. how to fix P0420 code on Honda Accord 9th Generation (2013-2017)

    Learn how to diagnose and fix P0420 code in Honda Accord 9th Generation. Step-by-step guide with symptoms, diagnostic steps, and repair instructions.

    P0420Exhaust System5 symptoms

  5. my Honda Accord stalls while driving what could be wrong

    Learn how to diagnose and fix stalling issues in Honda Accord. Step-by-step guide with symptoms, diagnostic steps, tools, and repair instructions.

    Engine6 symptoms

  6. my Honda Accord transmission slips when accelerating what's wrong

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

    Transmission6 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