how to deal with a P0301 misfire code in my Volkswagen Golf MK7.5 (2020-Present)

Solution

1. Preparation

• Gather necessary tools and parts.
• Ensure the vehicle is parked on a flat surface and the engine is cool.
• Disconnect the negative battery terminal to prevent electrical shorts.

2. Inspect and Replace Spark Plug

• Remove the engine cover if necessary.
• Disconnect the ignition coil connector from cylinder 1.
• Unbolt and remove the ignition coil.
• Remove the spark plug using a spark plug socket.
• Inspect the spark plug for wear, carbon buildup, or damage; replace if necessary.

Tools Required: Spark plug socket, ratchet, torque wrench
Parts Required: New spark plug (specify type per manufacturer specifications)

3. Inspect and Replace Ignition Coil

• If the spark plug is in good condition, inspect the ignition coil for damage.
• If defective, replace with a new ignition coil.
• Reinstall the ignition coil and connect the electrical connector.

Tools Required: Ratchet, torque wrench
Parts Required: New ignition coil for cylinder 1

4. Check and Clean Fuel Injector

• Remove the fuel rail if necessary to access the injector.
• Inspect the fuel injector for clogs or leaks; clean or replace as needed.
• Reinstall the fuel rail and ensure all connections are secure.

Tools Required: Fuel injector removal tool, cleaning solvent
Parts Required: New fuel injector if cleaning is ineffective

5. Reassemble and Reconnect

• Reinstall any removed components (engine cover, etc.).
• Reconnect the negative battery terminal.
• Clear the trouble codes using an OBD-II scanner.