how to fix P0302 code on Honda Accord Eleventh Generation (2023-present)

Solution

1. Preparation

• Gather tools and parts needed for the repair.
• Ensure the vehicle is parked on a level surface and the parking brake is engaged.

2. Replace Spark Plug and Ignition Coil for Cylinder 2

• Tools Required: Socket set, torque wrench, spark plug socket, ratchet, extension.
• Sub-steps:
  1. Disconnect the negative battery terminal to prevent electrical shock.
  2. Remove the engine cover if applicable.
  3. Locate the ignition coil and spark plug for cylinder 2 (refer to service manual for specific location).
  4. Disconnect the ignition coil connector.
  5. Remove the ignition coil bolt and lift the coil out.
  6. Use a spark plug socket to remove the spark plug.
  7. Inspect the spark plug for wear and replace it if necessary.
  8. Install the new spark plug and torque to manufacturer's specifications (typically 13-15 lb-ft).
  9. Reinstall the ignition coil and secure it with the bolt.
  10. Reconnect the ignition coil connector.

3. Replace Fuel Injector for Cylinder 2 (if required)

• Tools Required: Socket set, fuel line disconnect tool, torque wrench.
• Sub-steps:
  1. Relieve fuel pressure by removing the fuel pump fuse and starting the engine until it stalls.
  2. Disconnect the negative battery terminal.
  3. Remove the intake manifold if necessary to access the fuel injector.
  4. Disconnect the fuel injector electrical connector.
  5. Use a fuel line disconnect tool to detach the fuel line from the injector.
  6. Remove the fuel injector retaining clips and pull the injector out.
  7. Install the new fuel injector, ensuring the O-ring is properly seated.
  8. Reattach the fuel line and reconnect the electrical connector.
  9. Reinstall the intake manifold (if removed) and torque to specifications.