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

Solution

1. Preparation

• Gather tools and parts required.
• Disconnect the battery to ensure safety while working on electrical components.

2. Replace Spark Plug

• Remove the engine cover if applicable.
• Locate cylinder 1 spark plug (usually at the front of the engine).
• Use a socket wrench to remove the spark plug.
• Inspect the old spark plug and compare it with specifications.
• Install the new spark plug, ensuring it is torqued to manufacturer specifications (typically around 13 lb-ft).
• Reconnect the spark plug wire or ignition coil.

3. Test Ignition Coil

• If the spark plug is good, remove the ignition coil from cylinder 1.
• Use a multimeter to check the primary and secondary resistance of the ignition coil.
• If the coil is faulty, replace it with a new one.
• Reinstall the ignition coil and reconnect all electrical connections.

4. Inspect Fuel Injector

• Disconnect the fuel injector connector for cylinder 1.
• Use a multimeter to check for proper voltage and resistance.
• If the injector is not functioning properly, remove it and clean or replace it as needed.
• Reconnect the fuel injector connector.

5. Compression Test

• If misfire persists after replacing the spark plug and inspecting the ignition coil and fuel injector, perform a compression test on cylinder 1.
• If compression is low, further investigation is needed for potential internal engine issues.
• If compression is within specifications, proceed to check for vacuum leaks.