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

Solution

1. Preparation

• Gather all necessary tools and parts.
• Ensure the engine is cool and disconnect the negative battery terminal for safety.

2. Inspect and Replace Ignition Components

1. Remove Engine Cover: If applicable, use a socket set to remove bolts securing the engine cover and lift it off.
2. Remove Spark Plug: Use a spark plug socket and ratchet to carefully remove the spark plug from cylinder 1.
   • Tool Required: Spark plug socket, ratchet
   • Safety Warning: Avoid working on a hot engine to prevent burns.
3. Inspect Spark Plug: Check for signs of wear, carbon buildup, or damage. Replace with a new spark plug if necessary.
4. Check Ignition Coil: Disconnect the ignition coil connector and remove the coil securing bolts. Replace the ignition coil if it's faulty or showing signs of wear.
   • Parts Required: Spark plug, ignition coil

3. Test and Replace Fuel Injector

1. Remove Fuel Injector: Disconnect the fuel injector connector and remove the retaining clips. Carefully pull out the fuel injector from the rail.
   • Tool Required: Injector puller (if necessary)
2. Inspect Injector: Check for clogging or damage. Clean or replace the fuel injector if needed.
3. Reinstall Injector: Place the new or cleaned injector back in the rail, secure with clips, and reconnect the electrical connector.

4. Reassemble and Reconnect

1. Reinstall Spark Plug and Coil: Insert the new spark plug into cylinder 1 and torque it to the manufacturer's specifications (typically around 15-20 ft-lbs). Reattach the ignition coil.
2. Replace Engine Cover: If removed, reinstall the engine cover and secure it with bolts.
3. Reconnect Battery: Reconnect the negative battery terminal.