how to fix P0302 misfire code on my Volkswagen Golf Eighth Generation (2020-present)

Solution

1. Preparation

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

2. Inspect and Replace Spark Plug

• Tools Required: Socket set, torque wrench, spark plug socket.
• Remove the ignition coil from cylinder 2.
• Remove the spark plug using a spark plug socket.
• Inspect the spark plug for wear or damage. Replace if necessary.
• Install a new spark plug and torque to manufacturer specifications (typically around 20 Nm).
• Reinstall the ignition coil on cylinder 2.

3. Inspect and Replace Ignition Coil

• Tools Required: Socket set.
• Remove the ignition coil from cylinder 2.
• Test the ignition coil with a multimeter to ensure it is functioning correctly.
• If defective, replace it with a new ignition coil.
• Reinstall the ignition coil and make sure it is seated properly.

4. Test Fuel Injector

• Tools Required: Fuel injector tester (if available).
• Disconnect the fuel injector connector for cylinder 2.
• Test the injector for proper operation using a fuel injector tester or by performing a resistance test with a multimeter.
• If the injector is faulty, replace it with a new injector.
• Reconnect the fuel injector harness.

5. Final Checks

• Reconnect the negative battery terminal.
• Start the engine and monitor for any misfire codes.