how to fix P0301 misfire code in Honda Pilot Third Generation (2016-present)

Solution

1. Preparation

• Gather necessary tools and parts.
• Disconnect the battery negative terminal to prevent electrical shorts.
• Ensure the engine is cool before beginning work.

2. Inspect and Replace Spark Plug

• Tools Required: Socket set, spark plug socket, torque wrench
• Remove the ignition coil for cylinder 1 by unfastening the retaining bolts and disconnecting the electrical connector.
• Remove the spark plug using a spark plug socket.
• Inspect the spark plug for wear or carbon buildup; replace if necessary with OEM or equivalent specification spark plug.
• Torque the new spark plug to the manufacturer's specification (usually around 13 lb-ft).
• Reinstall the ignition coil and reconnect the electrical connector.

3. Inspect and Replace Ignition Coil

• If the spark plug is in good condition, test the ignition coil using a multimeter for proper resistance.
• If faulty, replace the ignition coil with a new component.
• Ensure proper installation and secure connections for the new ignition coil.

4. Inspect Fuel Injector

• Check the fuel injector for proper operation using a multimeter or an injector tester.
• If the injector is clogged or malfunctioning, replace it with a new one.
• Ensure proper seating and connection after installation.

5. Check Compression

• Tools Required: Compression tester
• Remove the spark plug from cylinder 1 and insert the compression tester.
• Crank the engine and record the maximum compression reading.
• Compare the reading to manufacturer specifications; replace any necessary engine components if compression is low.