why does my Honda Pilot YF3 (2016-2022) engine light come on after refueling?

Solution

1. Preparation

• Tools Required: OBD-II scanner, socket set, torque wrench, inspection mirror.
• Ensure the vehicle is on a level surface and the engine is off. Disconnect the battery to avoid electrical issues.

2. Inspect and Replace Gas Cap

• Sub-steps:
  1. Remove the gas cap and inspect for any visible damage.
  2. Clean the gas cap sealing surface and the filler neck with a clean cloth.
  3. If damaged, replace with a new gas cap, ensuring it meets OEM specifications.
  4. Reinstall the gas cap, tightening it until you hear a click.

3. Check EVAP System Components

• Sub-steps:
  1. Locate the EVAP canister and inspect for cracks or leaks.
  2. Using a multimeter, test the canister purge valve for functionality.
  3. Replace any faulty components, such as the purge valve or canister, as needed.

4. Inspect Fuel Filler Neck

• Sub-steps:
  1. Remove any protective covers to access the fuel filler neck.
  2. Examine for any obstructions or corrosion.
  3. If damaged, replace the fuel filler neck with a new part.

5. Clear Error Codes

• Sub-steps:
  1. Reconnect the battery if it was disconnected.
  2. Use the OBD-II scanner to clear any stored error codes.
  3. Start the engine and check if the check engine light remains off.