how to fix the P0301 misfire code on Honda Pilot YF3 (2016-2022)

Solution

1. Preparation

• Gather tools and parts needed for the repair.
• Disconnect the negative battery terminal to ensure safety.
• Allow the engine to cool down before starting any work.

2. Replace Spark Plug

• Tools Required: Socket set, torque wrench, gap gauge
• Remove the ignition coil cover if necessary.
• Use a socket wrench to remove the spark plug from cylinder 1.
• Inspect the old spark plug for wear; replace if necessary.
• Set the gap on the new spark plug according to manufacturer specifications (typically 0.043 inches).
• Install the new spark plug and torque it to the manufacturer's specification (typically 13 ft-lbs).
• Reattach the ignition coil.

3. Replace Ignition Coil (if necessary)

• If the ignition coil for cylinder 1 is faulty, remove it using the socket set.
• Disconnect the electrical connector and remove the mounting bolts.
• Install the new ignition coil and reconnect the electrical connector.

4. Inspect and Clean Fuel Injector

• If a fuel injector issue is suspected, access the fuel rail.
• Disconnect the fuel injector connector for cylinder 1.
• Remove the fuel injector using a socket set.
• Clean the injector with an appropriate cleaner or replace it if necessary.
• Reinstall the fuel injector and reconnect the connector.

5. Verification of Repair

• Reconnect the negative battery terminal.
• Start the engine and let it idle for a few minutes.
• Use the OBD-II scanner to check for any new error codes.
• Test drive the vehicle to verify the absence of misfire symptoms.