how to fix P0301 code in Honda Pilot YF3 (2016-2022)

Solution

1. Preparation

• Gather all necessary tools and parts.
• Disconnect the negative battery terminal to prevent electrical shock.
• Allow the engine to cool down.

2. Replace Spark Plug

• Tools Required: Socket set, torque wrench, spark plug socket, gap gauge.
• Remove the ignition coil from cylinder 1 by unbolting it and disconnecting the electrical connector.
• Unscrew the spark plug using a spark plug socket.
• Inspect the old spark plug for wear; if damaged, replace it with a new spark plug.
• Ensure the new spark plug is gapped correctly according to manufacturer specifications (typically 0.044 inches).
• Install the new spark plug and torque to the manufacturer’s specified value (usually around 13 lb-ft).
• Reinstall the ignition coil onto the new spark plug.

3. Inspect and Replace Ignition Coil (if necessary)

• If the ignition coil appears damaged, remove it from cylinder 1.
• Test the ignition coil with a multimeter to check for proper resistance.
• If faulty, replace the ignition coil with a new unit.
• Reconnect the electrical connector and secure it in place.

4. Fuel Injector Inspection

• Remove the fuel rail if necessary to access the fuel injector for cylinder 1.
• Inspect the fuel injector for clogs or leaks. Clean or replace as needed.
• Reinstall the fuel rail and ensure all connections are tight.

5. Compression Test (if misfire persists)

• Use a compression gauge to check the compression of cylinder 1.
• If the compression is low, check for possible causes such as valve issues or head gasket failure.
• Repair any identified mechanical issues before proceeding.