FAULTBASE
Error CodesASKCars
© 2026 FAULTBASE
All rights reserved.
v2.0.0 • Production
ContactPrivacyImpressum
why does my Honda Accord 10th Generation (2018-2022) check engine light stay on after replacing the... - Honda Accord
Home/Cars/Honda/Accord/8th Generation (2008-2012)/why does my Honda Accord 10th Generation (2018-2022) check engine light stay on after replacing the...

why does my Honda Accord 10th Generation (2018-2022) check engine light stay on after replacing the...

Honda Accord 8th Generation (2008-2012)

Error Codes
2-4 hours
Time
medium
Difficulty
medium
Severity
Navigation
ProblemSymptomsDiagnosisSolution
ProblemSymptomsDiagnosisSolution
3 min read
518 words

Problem Statement

Learn how to diagnose and fix the check engine light issue in Honda Accord 10th Generation (2018-2022). Step-by-step guide with diagnostic procedures and repair instructions.

Affected Component
Fuel System
Estimated Time
2-4 hours

⚠️ Safety Warnings

Important safety information - read before proceeding

  • •Disconnect the battery before working on electrical systems.
  • •Allow the engine to cool before performing any repairs on the EVAP system.

Symptoms

  • •Check engine light illuminated
  • •Fuel odor around the vehicle
  • •Poor fuel economy
  • •Engine misfires or rough idling
  • •Increased emissions
  • •Possible error codes related to EVAP system

Diagnostic Steps

  1. 1
  2. 2
  3. 3
  4. 4
  5. 5
  6. 6

Solution

💡 Expert Tip

For complex repairs like this, consider taking photos at each step. This helps if you need to reverse a step or consult with a mechanic. Also, keep all removed parts organized - you may need to reference them during reassembly.

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
  • •Smoke machine
  • •Socket set
  • •Torque wrench

Parts Required

  • •EVAP hoses (if damaged)
  • •Purge valve (if faulty)

Additional Information

Affected Component
Fuel System
Estimated Time
2-4 hours
Difficulty
medium
Severity
medium
Tools Required
5 items
Parts Required
2 items

Related Faults

Loading...

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
Solution
1. Preparation
  • Gather tools and parts needed for the repair.
  • Ensure the vehicle is parked on a level surface and the engine is cool.
  • Disconnect the battery to prevent any electrical shorts.
2. Inspect and Replace EVAP Components

2.1 Inspect EVAP Hoses

  • Remove any covers obstructing access to the EVAP system.
  • Visually inspect all hoses connected to the EVAP system for signs of cracks or wear.
  • Replace any damaged hoses with OEM parts.

2.2 Test and Replace Purge Valve

  • Disconnect the electrical connector from the purge valve.
  • Using a multimeter, test for continuity. Replace if faulty.
  • Install the new purge valve, ensuring all connections are secure.

2.3 Perform Smoke Test

  • Connect a smoke machine to the EVAP system.
  • Observe for smoke escaping from any areas, indicating leaks.
  • Repair any identified leaks before proceeding.
3. Clear Codes
  • Reconnect the battery.
  • Use the OBD-II scanner to clear the check engine codes and reset the system.
4. Road Test
  • Start the vehicle and allow it to reach operating temperature.
  • Monitor the check engine light status during a short drive.