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

Solution

1. Preparation

• Gather tools and parts.
• Disconnect the negative battery terminal to ensure safety during repairs.

2. Replace Spark Plug

• Tools Required: Spark plug socket, torque wrench, ratchet, dielectric grease.
• Remove the engine cover if necessary.
• Disconnect the ignition coil connector and remove the ignition coil.
• Remove the spark plug using a spark plug socket.
• Inspect the spark plug for signs of wear or damage (burnt, cracked).
• Install a new spark plug, applying dielectric grease to the threads.
• Torque the spark plug to the manufacturer's specification (typically around 13-15 lb-ft).
• Reinstall the ignition coil and connector.

3. Inspect/Replace Ignition Coil

• Tools Required: Multimeter, socket set.
• Use a multimeter to test the ignition coil's primary and secondary resistance.
• If the ignition coil is faulty, replace it with a new one.
• Reconnect the ignition coil and ensure all connections are secure.

4. Compression Test

• Tools Required: Compression tester.
• Remove the spark plug from cylinder 1 and install the compression tester.
• Crank the engine for a few seconds and read the compression value.
• Compare the reading with the manufacturer's specifications (typically around 190-210 psi).
• If compression is low, further investigation is needed for potential internal engine issues.

5. Check Fuel Injector

• Tools Required: Fuel injector cleaning kit (if cleaning is needed).
• Disconnect the fuel injector connector from cylinder 1.
• Use a noid light to check for signal to the fuel injector.
• If the injector is clogged, remove it and clean or replace as necessary.
• Reconnect all components securely.