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

Solution

1. Preparation

• Gather necessary tools and parts.
• Disconnect the negative battery terminal to prevent electrical shorts.
• Allow the engine to cool before starting any work.

2. Replace Spark Plug

• Tools Required: Spark plug socket, ratchet, torque wrench.
• Remove the ignition coil by unscrewing the bolts and gently pulling it off.
• Using a spark plug socket, remove the spark plug from cylinder 1.
• Inspect the old spark plug; if it is worn or damaged, replace it with a new one.
• Torque the new spark plug to the manufacturer's specification (typically around 13-16 lb-ft).
• Reinstall the ignition coil and secure it with bolts.

3. Test Ignition Coil

• Tools Required: Multimeter.
• Check the resistance of the ignition coil using a multimeter. Consult the service manual for the specific resistance values for the ignition coil.
• If the ignition coil is outside the specified range, replace it with a new one.

4. Inspect Fuel Injector

• Tools Required: Fuel injector cleaner kit or multimeter (for electrical testing).
• Disconnect the fuel injector connector and check for continuity with a multimeter.
• If the injector is faulty or clogged, clean it using a fuel injector cleaner kit or replace it with a new one.

5. Compression Test

• Tools Required: Compression tester.
• Remove the spark plug from cylinder 1 and install the compression tester.
• Crank the engine and note the compression reading. Compare it with the manufacturer specifications.
• If compression is low, further investigation into the engine’s internal components may be needed.