how to fix the P0301 misfire code on my Honda CR-V Sixth Generation (2023-present)

Solution

1. Preparation

• Gather tools and parts.
• Ensure the engine is cool and disconnect the battery.

2. Inspect and Replace Spark Plug

1. Remove the engine cover if applicable.
2. Locate and remove the spark plug wire or ignition coil connected to cylinder 1.
3. Use a spark plug socket to remove the spark plug.
4. Inspect the spark plug for signs of wear or fouling; replace if necessary.
5. Install a new spark plug, torque to manufacturer specifications (typically 13-15 lb-ft for Honda).
6. Reconnect the ignition coil or spark plug wire.

3. Check and Replace Ignition Coil

1. Remove the ignition coil for cylinder 1.
2. Test the coil with a multimeter to ensure it has proper resistance (consult service manual for specific values).
3. If the coil is defective, replace it with a new one.
4. Reinstall the ignition coil and reconnect any necessary electrical connectors.

4. Inspect and Replace Fuel Injector

1. Disconnect the fuel line and electrical connector from the fuel injector for cylinder 1.
2. Remove the fuel injector using an injector puller or appropriate tool.
3. Inspect the injector for blockage or damage; replace if necessary.
4. Install the new fuel injector and reconnect the fuel line and electrical connector.

5. Perform Compression Test

1. Remove the spark plug from cylinder 1.
2. Insert the compression gauge into the spark plug hole.
3. Crank the engine to obtain a compression reading.
4. Compare the reading to manufacturer specifications; replace the engine if compression is low.