how to fix P0301 code in Honda Accord 10th Generation (2018-2022)

Solution

1. Preparation

• Gather tools and parts required for the repair.
• Disconnect the negative battery terminal to prevent electrical shorts.

2. Replace Spark Plug

1. Remove the ignition coil from cylinder 1 by unscrewing the retaining bolt and disconnecting the electrical connector.
2. Extract the spark plug using a spark plug socket and ratchet.
3. Inspect the old spark plug for wear; replace it with a new spark plug of the specification recommended by Honda.
4. Torque the new spark plug to the manufacturer’s specifications (typically around 13 lb-ft).

3. Check and Replace Ignition Coil (if necessary)

1. If the ignition coil appears damaged or if the spark plug replacement does not resolve the issue, proceed to replace the ignition coil.
2. Remove the old ignition coil from cylinder 1.
3. Install the new ignition coil, ensuring it is seated properly.
4. Reconnect the electrical connector and secure with the retaining bolt.

4. Inspect and Replace Fuel Injector (if necessary)

1. If no spark or spark quality is detected, check the fuel injector.
2. Remove the fuel injector from cylinder 1 following the manufacturer’s instructions.
3. Install a new fuel injector, ensuring proper sealing and connections.

5. Reconnect Battery

• Reconnect the negative battery terminal after all repairs are completed.