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

Solution

1. Preparation

• Gather all necessary tools and parts.
• Disconnect the negative battery terminal to ensure safety during repairs.

2. Replace Spark Plug

• Remove the engine cover (if applicable) using a socket set.
• Unscrew the spark plug from cylinder 1 using a spark plug socket and ratchet.
• Inspect the old spark plug for wear. Install a new spark plug, ensuring it is gapped correctly (typically 0.043 inches for Honda).
• Torque the new spark plug to the manufacturer's specification (usually around 13 lb-ft).

3. Test and Replace Ignition Coil

• Disconnect the electrical connector from the ignition coil in cylinder 1.
• Remove the ignition coil by unscrewing the mounting bolts.
• Inspect the ignition coil for cracks or damage. If faulty, replace it with a new coil.
• Reinstall the new ignition coil, securing it with the bolts and reconnecting the electrical connector.

4. Clean or Replace Fuel Injector

• Disconnect the fuel injector electrical connector and fuel line (be cautious of fuel spillage).
• Remove the fuel injector from cylinder 1 using a socket or wrench.
• Clean the injector using a cleaning solvent or replace it with a new injector.
• Reinstall the injector, ensuring proper seating and reconnect the fuel line securely.

5. Final Checks

• Reconnect the negative battery terminal.
• Start the engine and allow it to idle. Check for any leaks and ensure the engine runs smoothly.