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

Solution

1. Preparation

• Gather tools and materials.
• Disconnect the negative terminal of the battery to prevent electrical shorts.
• Allow the engine to cool down before starting work.

2. Remove Spark Plug

• Tools Required: Spark plug socket, ratchet, extension.
• Sub-steps:
  1. Remove any engine covers if necessary.
  2. Disconnect the ignition coil connector from the spark plug.
  3. Remove the ignition coil using a socket.
  4. Use the spark plug socket to remove the spark plug from cylinder 2.
  5. Inspect the spark plug for wear, carbon build-up, or damage.

3. Inspect and Replace Ignition Coil

• Tools Required: Torque wrench, ratchet, socket set.
• Sub-steps:
  1. Visually inspect the ignition coil for cracks or signs of arcing.
  2. If faulty, install a new ignition coil by reversing the removal steps.
  3. Torque the ignition coil bolts to the manufacturer's specification (usually around 10-15 ft-lbs).

4. Check and Clean Fuel Injector

• Tools Required: Fuel injector cleaning kit, multimeter (for electrical testing).
• Sub-steps:
  1. Disconnect the fuel injector connector.
  2. Test the injector for proper resistance (usually around 12-16 ohms).
  3. If the injector is faulty, replace it with a new one.
  4. If cleaning, attach the injector to the cleaning kit and follow the instructions to clean it.

5. Reassemble and Reconnect

• Sub-steps:
  1. Reinstall the spark plug and torque it to the recommended specification (typically around 13-16 ft-lbs).
  2. Reconnect the ignition coil and ensure the connector clicks securely.
  3. Reattach any engine covers removed during the process.
  4. Reconnect the negative battery terminal.