my Volkswagen Golf MK7.5 (2020-Present) keeps throwing P0301 code, how to fix it?

Solution

1. Preparation

• Gather necessary tools and parts.
• Disconnect the negative battery terminal to prevent electrical shock.
• Allow the engine to cool down to avoid burns.

2. Replace Spark Plug

1. Remove the engine cover (if applicable) using a socket set.
2. Disconnect the ignition coil connector from cylinder 1.
3. Remove the ignition coil by unscrewing it from the cylinder head.
4. Use a spark plug socket to remove the spark plug from cylinder 1.
5. Inspect and replace the spark plug with a new one, ensuring the gap is set to the manufacturer's specifications (typically around 0.028-0.032 inches).
6. Reinstall the ignition coil and reconnect the electrical connector.

3. Replace Ignition Coil

1. If the ignition coil was defective, replace it with a new coil compatible with your model.
2. Reconnect the ignition coil connector after installation.
3. Ensure all connections are secure and reassemble any components removed during the process.

4. Check Fuel Injector

1. If the issue persists, perform a fuel injector cleaning or replace the fuel injector for cylinder 1.
2. Remove the fuel rail (may require relieving fuel pressure first).
3. Replace the faulty injector with a new one, ensuring proper seating and connection.
4. Reassemble the fuel rail and ensure all connections are secure.