how to fix P0302 code in Skoda Octavia NFL (2020-Present)

Learn how to diagnose and fix P0302 cylinder 2 misfire in Skoda Octavia NFL. Step-by-step guide with diagnostic procedures and repair instructions.

Solution

1. Preparation

• Gather necessary tools and parts.
• Ensure the vehicle is parked on a level surface and the engine is cool.
• Disconnect the negative battery terminal to ensure safety.

2. Inspect and Replace Spark Plug

• Remove the engine cover if necessary.
• Locate and remove the spark plug from cylinder 2 using a spark plug socket.
• Inspect the spark plug for wear, fouling, or damage.
• If damaged, replace it with a new spark plug that meets manufacturer specifications (e.g., NGK, Bosch).
• Torque the new spark plug to the manufacturer's specified value (usually around 15-20 Nm).

3. Check and Replace Ignition Coil

• Remove the ignition coil from cylinder 2 by disconnecting the electrical connector and unscrewing the mounting bolts.
• Inspect the ignition coil for cracks or signs of wear.
• Test the ignition coil with a multimeter to check for proper resistance.
• If faulty, replace with a new ignition coil that matches the OEM specifications.
• Reinstall the ignition coil and ensure it is securely connected.

4. Inspect and Replace Fuel Injector

• Disconnect the fuel injector connector and remove the retaining clips.
• Carefully remove the fuel injector from cylinder 2.
• Inspect the injector for clogs or leaks. Use a fuel injector cleaner if needed.
• If the injector is faulty, replace it with a new one matching OEM specifications.
• Reinstall the injector and ensure it is seated properly with the retaining clips.

5. Verify Engine Compression

• If misfire persists, perform a compression test to ensure cylinder 2 has adequate compression (typically around 180 psi).
• If compression is low, further investigation may be needed (e.g., valve issues, gasket leaks).