how to fix P0301 misfire code on Volkswagen Golf Eighth Generation (2020-present)

Solution

1. Preparation

• Gather necessary tools and parts.
• Park the vehicle on a level surface and engage the parking brake.
• Disconnect the battery to prevent electrical shock.

2. Inspect and Replace Spark Plug

• Remove the engine cover if applicable.
• Locate the spark plug for cylinder 1 (refer to the owner's manual for location).
• Use a spark plug socket to remove the spark plug.
• Inspect the spark plug for wear, carbon buildup, or damage.
• If needed, replace the spark plug with a new one (specification: NGK or OEM equivalent, gap per manufacturer recommendations).
• Reinstall the spark plug and torque it to the manufacturer's specifications (typically around 22 ft-lbs).

3. Inspect and Replace Ignition Coil

• Disconnect the electrical connector from the ignition coil for cylinder 1.
• Remove the ignition coil by unscrewing any retaining bolts.
• Inspect the ignition coil for cracks or signs of wear.
• If faulty, replace with a new ignition coil (OEM recommended part).
• Reinstall the ignition coil and reconnect the electrical connector.

4. Check and Clean Fuel Injector

• Disconnect the fuel injector connector for cylinder 1.
• Remove the fuel injector from its rail (follow safety precautions to relieve fuel pressure).
• Inspect the injector for clogs or damage.
• If necessary, clean the injector using a fuel injector cleaning kit or replace it with a new one.
• Reinstall the fuel injector ensuring it is properly seated in the rail.

5. Reconnect Battery and Clear Codes

• Reconnect the battery terminals.
• Use the OBD-II scanner to clear the P0301 code and any other related codes.