why does my Honda Pilot YF3 (2016-2022) check engine light flash when driving?

Solution

1. Preparation

• Gather necessary tools and parts.
• Ensure the vehicle is parked on a level surface with the engine off.
• Disconnect the battery negative terminal to prevent electrical shorts.

2. Replace Ignition Components

• Tools Required: Socket set, torque wrench, pliers
• Sub-steps:
  1. Remove the engine cover if applicable.
  2. Disconnect the ignition coil connectors and unbolt the ignition coils.
  3. Replace worn spark plugs with new ones, ensuring they are gapped correctly according to specifications.
  4. Install new ignition coils and reconnect the connectors. Torque the bolts to manufacturer's specifications.

3. Fix Vacuum Leaks

• Tools Required: Smoke machine (if available), hose clamps
• Sub-steps:
  1. Conduct a smoke test to identify vacuum leaks in the intake system.
  2. Repair or replace any damaged hoses or gaskets.
  3. Ensure all connections are secure and reassemble any components removed during inspection.

4. Check and Replace Fuel Filter

• Tools Required: Fuel line disconnect tool, socket set
• Sub-steps:
  1. Relieve fuel system pressure by removing the fuel pump fuse and starting the engine until it stalls.
  2. Disconnect the fuel lines from the fuel filter using a fuel line disconnect tool.
  3. Remove the old fuel filter and install the new one, ensuring the direction of flow is correct.
  4. Reconnect the fuel lines and replace the fuel pump fuse.