how to fix P0301 code in my Volkswagen Golf MK7.5 (2020-Present)

Solution

1. Preparation

• Gather tools and parts required for the repair.
• Disconnect the battery to prevent electrical shorts.

2. Replace Spark Plug

1. Remove the engine cover if necessary for access.
2. Disconnect the ignition coil connector for cylinder 1.
3. Remove the ignition coil from cylinder 1 by unbolting it.
4. Unscrew the spark plug using a spark plug socket.
5. Inspect the old spark plug for wear; replace it if necessary, ensuring to use the correct part number and gap specification.
6. Install the new spark plug and torque it to the manufacturer’s specification (usually around 20-25 Nm).
7. Reinstall the ignition coil and reconnect the connector.

3. Replace Ignition Coil (if needed)

1. If the ignition coil is faulty, replace it after inspecting it.
2. Remove the faulty ignition coil from its position.
3. Install the new ignition coil securely and reconnect the electrical connector.

4. Inspect and Clean Fuel Injector (if needed)

1. If the fuel injector is found to be faulty, remove it from cylinder 1.
2. Clean the injector using a professional fuel injector cleaning kit or replace it if necessary.
3. Reinstall the fuel injector ensuring proper seating and connection.

5. Reconnect Battery

• Reconnect the battery terminals securely.