how do I fix a P0301 code in my Volkswagen Golf Eighth Generation (2020-present)?

Solution

1. Preparation

• Gather necessary tools and parts.
• Disconnect the battery to ensure safety.

2. Inspect and Replace Spark Plug

• Remove the ignition coil from cylinder 1.
• Unscrew and remove the spark plug using a spark plug socket.
• Inspect the spark plug for signs of wear, carbon buildup, or damage.
• If needed, replace with a new spark plug (specification: use OEM or equivalent).

3. Check and Replace Ignition Coil

• If the spark plug is in good condition, test the ignition coil using a multimeter.
• If faulty, remove the ignition coil by unscrewing it from the engine block.
• Install a new ignition coil, ensuring it is secure.

4. Inspect and Clean Fuel Injector

• Disconnect the fuel injector connector and remove it from the fuel rail.
• Clean the injector with a fuel injector cleaning solution or replace it if necessary.
• Reinstall the fuel injector and reconnect the wiring.

5. Perform Compression Test

• Reinstall spark plug and ignition coil temporarily.
• Connect a compression tester to cylinder 1.
• Crank the engine and record the compression reading; it should be within the manufacturer’s specifications.
• If compression is low, further engine diagnostics may be necessary.