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

Solution

1. Preparation

• Gather necessary tools and parts.
• Ensure the vehicle is parked on a level surface and the engine is cool.
• Disconnect the battery to avoid electrical shock.

2. Replace Spark Plug

• Remove the engine cover if applicable using a socket set.
• Disconnect the ignition coil connector and remove the ignition coil from cylinder 1.
• Use a spark plug socket to remove the spark plug.
• Inspect the old spark plug; replace it with a new spark plug (OEM recommended specifications).
• Torque the new spark plug to manufacturer specifications (typically around 13 lb-ft).

3. Replace Ignition Coil

• Reinstall the ignition coil on cylinder 1 after ensuring it is clean and free of debris.
• Reconnect the ignition coil connector securely.
• If the ignition coil is faulty, replace it with a new one.

4. Test Fuel Injector

• Remove the fuel injector connector from cylinder 1.
• Use a multimeter to check for continuity; if there is no continuity, replace the fuel injector.
• If testing is not conclusive, consider replacing the fuel injector for cylinder 1.

5. Compression Check (if needed)

• Remove the spark plug from cylinder 1.
• Insert a compression gauge into the spark plug hole.
• Crank the engine and record the compression reading; it should be within the manufacturer's specified range.
• If compression is low, further investigation into internal engine components may be necessary.