how to resolve the check engine light and P0301 code in my Honda Pilot YF4 (2023-Present)

Solution

1. Preparation

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

2. Inspect and Replace Ignition Components

• Tools Required: Socket set, torque wrench, spark plug socket, dielectric grease.

1. Remove the engine cover if applicable.
2. Disconnect the electrical connector from the ignition coil for cylinder 1.
3. Remove the ignition coil by unbolting it and gently pulling it out.
4. Inspect the spark plug; if worn or fouled, remove and replace it with a new one (consult the owner’s manual for specifications).
5. Apply dielectric grease to the new ignition coil’s connector and reinstall it.
6. Reinstall the ignition coil and torque it to the manufacturer’s specifications (typically around 7-9 ft-lbs).

3. Inspect and Replace Fuel Injector (if necessary)

• Tools Required: Fuel injector puller, fuel line disconnect tool.

1. Remove the fuel rail if needed to access the injector.
2. Disconnect the fuel injector connector for cylinder 1.
3. Remove the fuel injector from the rail; inspect for clogs or damage.
4. Replace with a new fuel injector if any issues are found.
5. Reinstall the fuel rail, ensuring it is properly seated, and reconnect the fuel lines.

4. Reconnect Battery and Clear Codes

1. Reconnect the battery terminal.
2. Use an OBD-II scanner to clear the P0301 code and check for any new codes.