how to fix P0301 code in my Honda Accord 9th Generation (2013-2017)

Solution

1. Preparation

• Gather tools and parts.
• Disconnect the negative battery terminal.
• Allow the engine to cool down.

2. Replace Spark Plug

• Tools Required: Socket set, spark plug socket, torque wrench.
• Remove the ignition coil from cylinder 1 by unscrewing the mounting bolts.
• Disconnect the electrical connector from the ignition coil.
• Remove the old spark plug using the spark plug socket.
• Install the new spark plug, ensuring it is torqued to 13 ft-lbs (18 Nm).
• Reinstall the ignition coil and reconnect the electrical connector.

3. Replace Ignition Coil (if necessary)

• Tools Required: Socket set, torque wrench.
• If the ignition coil was found faulty, remove it following the steps above.
• Install the new ignition coil and ensure it is torqued to the manufacturer's specification (usually around 10 ft-lbs).
• Reconnect the electrical connector.

4. Check Fuel Injector (if necessary)

• Tools Required: Fuel injector cleaning kit, basic hand tools.
• If the fuel injector is suspected to be clogged, remove it from cylinder 1.
• Clean or replace the fuel injector as necessary.
• Reinstall the fuel injector, ensuring it is properly seated.

5. Address Vacuum Leaks

• Tools Required: Smoke machine or carburetor cleaner.
• Inspect all vacuum lines and the intake manifold for leaks.
• Use a smoke machine or spray carburetor cleaner to locate leaks.
• Replace any damaged hoses or gaskets.