why does my Honda Accord's engine light flash while driving?

Solution

1. Preparation

• Gather necessary tools and parts before starting.
• Disconnect the negative battery terminal to prevent electrical shorts.
• Ensure the engine is cool before working on it.

2. Inspect and Replace Spark Plugs

• Sub-steps:
  1. Remove the ignition coil covers (if applicable) using a socket set.
  2. Disconnect the ignition coils from the spark plugs.
  3. Remove the old spark plugs using a spark plug socket and ratchet.
  4. Inspect the spark plugs for wear; replace with manufacturer-recommended spark plugs if necessary.
  5. Reinstall the spark plugs and ignition coils, ensuring they are properly torqued (usually around 13 lb-ft).

3. Check and Replace Ignition Coils

• Sub-steps:
  1. If any ignition coils are found defective during inspection, replace them with new ones.
  2. Disconnect the electrical connectors from the faulty ignition coils.
  3. Remove the retaining bolts and lift out the coils.
  4. Install the new coils and reconnect the electrical connectors.

4. Test Fuel System

• Sub-steps:
  1. Connect a fuel pressure gauge to the fuel rail.
  2. Turn on the ignition without starting the engine to check pressure; it should meet manufacturer specifications.
  3. If pressure is low, inspect the fuel pump and replace it if necessary.

5. Inspect Air Intake and Vacuum Lines

• Sub-steps:
  1. Visually inspect the air intake duct for cracks or loose connections.
  2. Check the condition of the air filter and replace if clogged.
  3. Look for any vacuum leaks by inspecting hoses and connections; replace any damaged hoses.