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

Solution

1. Preparation

• Gather tools and parts required for the repair.
• Disconnect the negative battery terminal to ensure safety while working on electrical components.
• Allow the engine to cool down before proceeding.

2. Replace Spark Plug

• Remove the Spark Plug: Use a socket set to carefully remove the spark plug from cylinder 1.
• Install New Spark Plug: Insert a new spark plug (ensure it is gapped to manufacturer specifications) and torque it to the manufacturer's recommended value (usually around 13-15 lb-ft).
• Reattach Wiring: Ensure that the ignition coil wiring is securely reconnected.

3. Test and Replace Ignition Coil (if necessary)

• Disconnect the Ignition Coil: Remove any bolts or clips securing the ignition coil to the engine and disconnect the electrical connector.
• Install New Ignition Coil: Place a new ignition coil in the same position and secure it with bolts. Reconnect the electrical connector.
• Recheck Resistance: If the ignition coil was not replaced, ensure the resistance readings are within specifications before reassembling.

4. Inspect Fuel Injector (if necessary)

• Remove Fuel Injector: Disconnect the fuel line and electrical connector from the injector. Remove any retaining clips and gently pull out the injector.
• Clean or Replace Injector: Clean the injector using a specialized cleaner or replace it with a new one as needed.
• Reinstall Injector: Place the cleaned or new injector back into its seat, reconnect the electrical connector, and reattach the fuel line securely.