how to fix P0302 code in Honda Accord 10th Generation (2018-2022)

Solution

1. Preparation

• Gather necessary tools and parts.
• Disconnect the negative battery terminal to ensure safety.
• Allow the engine to cool before beginning repairs.

2. Inspect and Replace Spark Plug

• Sub-steps:
  1. Remove the engine cover if applicable.
  2. Disconnect the ignition coil connector and remove the ignition coil from cylinder 2.
  3. Remove the spark plug using a spark plug socket.
  4. Inspect the spark plug for damage or excessive wear; replace if necessary.
  5. Install the new spark plug, tightening it to the manufacturer's specified torque (typically 13-16 lb-ft).
  6. Reinstall the ignition coil and reconnect the electrical connector.

3. Inspect and Replace Ignition Coil

• Sub-steps:
  1. If the ignition coil is found faulty, remove it from its mount.
  2. Install a new ignition coil specific to the vehicle's make and model.
  3. Reconnect the ignition coil connector securely.

4. Test Fuel Injector

• Sub-steps:
  1. Remove the fuel injector from cylinder 2.
  2. Test the injector for resistance using a multimeter; compare with manufacturer specifications.
  3. If faulty, replace with a new fuel injector.
  4. Reinstall the injector ensuring proper seating and connection.

5. Check for Vacuum Leaks

• Sub-steps:
  1. Inspect all hoses and gaskets around the intake manifold and throttle body.
  2. Replace any damaged or cracked hoses.
  3. Use a vacuum gauge to confirm that no leaks are present.