how to fix P0301 misfire code on Honda Accord 9th Generation (2013-2017)

Solution

1. Preparation

• Gather tools and parts required. Ensure the engine is cool.
• Disconnect the negative battery terminal to avoid electrical shock.

2. Inspect and Replace Spark Plug

• Tools Required: Socket set, torque wrench, spark plug socket.
• Remove the ignition coil from cylinder 1 using the socket set.
• Remove the spark plug using the spark plug socket.
• Inspect the spark plug for wear or fouling; replace if necessary.
• Install the new spark plug, torquing to the manufacturer’s specification (typically around 13-16 lb-ft).
• Reinstall the ignition coil.

3. Test and Replace Ignition Coil (if needed)

• Tools Required: Multimeter (for testing), socket set.
• Test the ignition coil for proper resistance using a multimeter; refer to manufacturer specifications.
• If the coil is faulty, remove it and replace with a new one.
• Reinstall the ignition coil after testing or replacing.

4. Check and Replace Fuel Injector (if needed)

• Tools Required: Fuel injector puller, socket set.
• If fuel delivery is suspect, remove the fuel injector from cylinder 1.
• Inspect for clogs or damage. Clean or replace the injector as necessary.
• Reinstall the fuel injector ensuring proper seating.

5. Final Assembly

• Reconnect the negative battery terminal.
• Start the engine and allow it to reach operating temperature.