how to fix P0301 misfire code in Honda CR-V Fifth Generation (2017-2022)

Solution

1. Preparation

• Gather tools and park the vehicle on a flat surface.
• Disconnect the negative battery terminal to prevent electrical shorts.
• Tools required: Socket set, torque wrench, ratchet, spark plug socket, multimeter, compression tester.

2. Replace Spark Plug (if needed)

1. Remove the engine cover (if applicable) using the socket set.
2. Use the spark plug socket to remove the spark plug from cylinder 1.
3. Inspect the spark plug for wear; replace if damaged.
4. Apply anti-seize compound to the threads of the new spark plug.
5. Install the new spark plug to the specified torque (typically 13 lb-ft).
6. Reinstall the engine cover if removed.

3. Replace Ignition Coil (if needed)

1. Disconnect the electrical connector from the ignition coil.
2. Remove the mounting bolt(s) securing the ignition coil using the socket set.
3. Pull the ignition coil out from the cylinder head.
4. Install the new ignition coil in reverse order, ensuring proper seating and torque of the mounting bolts (typically 7.5 lb-ft).
5. Reconnect the electrical connector.

4. Clean or Replace Fuel Injector (if needed)

1. Remove the fuel rail (ensure fuel pressure is relieved beforehand).
2. Disconnect the fuel injector connector and remove the retaining clips.
3. Pull the fuel injector out of the rail.
4. Clean the injector with an appropriate solvent or replace it if faulty.
5. Reinstall the injector, ensuring it is properly seated and secured with the retaining clips.

5. Final Checks

1. Reconnect the battery terminal.
2. Start the engine and check for any leaks or abnormal sounds.
3. Allow the engine to reach operating temperature.