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

Solution

1. Preparation

• Gather tools and parts needed for repair.
• Ensure the engine is cool before starting work.

Tools Required:

• OBD-II scanner
• Socket set
• Torque wrench
• Compression tester
• Multimeter
• Fuel injector cleaning kit (if needed)

2. Replace Spark Plug

1. Disconnect the negative battery terminal to prevent electrical shock.
2. Remove the engine cover if applicable.
3. Remove the ignition coil from cylinder 1 by unscrewing the retaining bolts.
4. Take out the spark plug using a spark plug socket.
5. Inspect the old spark plug; if damaged, install a new spark plug with the appropriate gap (check the owner’s manual for specifications).
6. Torque the new spark plug to the manufacturer’s specified value (typically around 13-16 lb-ft).
7. Reinstall the ignition coil and secure it with the bolts.

3. Test Ignition Coil

1. Use a multimeter to check the resistance of the ignition coil.
2. If the coil is faulty, replace it with a new one.
3. Reconnect the battery terminal and clear the trouble codes using the OBD-II scanner.

4. Check Fuel Injector

1. If the problem persists, test the fuel injector for cylinder 1 using the fuel injector cleaning kit.
2. Clean or replace the fuel injector if necessary, ensuring proper seating and connection.

5. Compression Test

1. If issues continue, perform a compression test on cylinder 1.
2. If compression is low (below manufacturer specifications), further engine disassembly may be necessary to address internal issues.