why does my Honda Pilot YF3 (2016-2022) engine light keep coming on

Solution

1. Preparation

• Gather tools and parts required for the repair.
• Ensure the vehicle is parked on a level surface and the engine is cool.
• Disconnect the battery to prevent electrical shorts.

2. Address Fault Codes

• Using the OBD-II scanner, identify and document any fault codes.
• Research the codes to determine the specific components involved (e.g., P0420 for catalytic converter efficiency).

3. Repair or Replace Components

• Gas Cap:

  • If the gas cap is faulty, replace it with a new OEM part.
  • Ensure it clicks securely when installed.

• Spark Plugs/Ignition Coils:

  • Remove the engine cover if necessary.
  • Disconnect the ignition coil connectors and remove the coils.
  • Inspect and replace worn spark plugs with new ones, ensuring correct gap settings.
  • Reinstall the ignition coils and connectors.

• Vacuum Hoses:

  • Inspect and replace any damaged or cracked hoses.
  • Ensure all connections are secure to prevent vacuum leaks.

4. Clear Codes and Reassemble

• Reconnect the battery.
• Use the OBD-II scanner to clear the fault codes.
• Start the engine and check for any remaining check engine light.