how to fix P0301 misfire code in 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 the electrical components.

2. Inspect and Replace Spark Plug

• Remove the ignition coil from cylinder 1 using a socket set.
• Remove the spark plug using a spark plug socket and ratchet.
• Inspect the spark plug for wear or damage; replace it if necessary.
• Install a new spark plug (using OEM specifications for gap) and reattach the ignition coil.

3. Test and Replace Ignition Coil (if necessary)

• If the spark plug is in good condition, test the ignition coil using a multimeter to check for proper resistance.
• Replace the ignition coil if it fails the test.
• Reinstall the ignition coil and ensure it is secured properly.

4. Inspect and Clean Fuel Injector

• Remove the fuel injector from cylinder 1 by detaching the fuel rail and the electrical connector.
• Inspect the injector for any clogs or leaks; clean or replace as necessary.
• Reinstall the fuel injector and ensure the connectors are secure.

5. Compression Test

• If the misfire persists, perform a compression test on cylinder 1 to verify that it is within the manufacturer’s specifications (typically 190-220 psi).
• If the compression is low, further diagnosis may be needed for potential internal engine issues such as valve problems or piston damage.

6. Clear Codes and Recheck

• Reconnect the negative battery terminal.
• Use the OBD-II scanner to clear the P0301 code.
• Start the engine and observe for any reoccurrence of the misfire code.