how to fix the check engine light on my Honda Accord 10th Generation (2018-2022)

Solution

1. Preparation

• Gather tools and parts needed for the repair.
• Disconnect the negative battery terminal to prevent electrical shorts.
• Allow the engine to cool if it has been running.

2. Addressing Error Codes

• If the OBD-II scanner reveals specific error codes:
  • Research the codes to identify the affected systems (e.g., P0171 for a lean condition).
  • Proceed with necessary repairs based on the identified codes.

3. Gas Cap Replacement (if applicable)

• If the gas cap is found to be faulty:
  • Remove the gas cap by twisting it counterclockwise.
  • Install a new gas cap by twisting it clockwise until it clicks into place.

4. Component Replacement (if necessary)

• If components like spark plugs or ignition coils are damaged:
  • Remove the engine cover (if present) using a socket set.
  • Disconnect electrical connectors and remove bolts securing the component.
  • Replace with new parts, ensuring proper alignment and securing them according to manufacturer specifications.

5. Clearing Error Codes

• Reconnect the negative battery terminal.
• Use the OBD-II scanner to clear any stored error codes.
• Ensure to perform a test drive to monitor for the reappearance of the check engine light.