what does a P0302 code mean for my 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.
• Disconnect the negative battery cable to prevent electrical shorts.
• Allow the engine to cool before starting work.

2. Spark Plug Replacement

1. Remove the engine cover (if applicable) using a socket set.
2. Remove the spark plug wire or ignition coil connected to cylinder 2.
3. Using a spark plug socket, carefully remove the spark plug from cylinder 2.
4. Inspect the old spark plug for wear and replace it with a new one, ensuring it is gapped to the manufacturer's specifications (usually around 0.7-0.8 mm for most Skoda engines).
5. Reconnect the ignition coil or spark plug wire securely.

3. Ignition Coil Inspection

1. If the spark plug was not the issue, remove the ignition coil from cylinder 2.
2. Inspect the coil for cracks or damage. If faulty, replace it with a new coil.
3. Reinstall the ignition coil, ensuring it is seated properly.

4. Fuel Injector Cleaning/Replacement

1. If the ignition components are functioning properly, remove the fuel injector from cylinder 2.
2. Clean the injector using a suitable fuel injector cleaner or replace it if necessary.
3. Reinstall the fuel injector and ensure all connections are secure.

5. Compression Test

1. If misfire persists, perform a compression test on cylinder 2.
2. If compression is low, further investigation of engine internals may be required, such as valve or piston issues.

Tools Required:

• OBD-II scanner
• Socket set
• Torque wrench
• Spark plug socket
• Compression tester
• Fuel injector cleaning kit

Parts Required:

• Spark plug (for cylinder 2)
• Ignition coil (if needed)
• Fuel injector (if needed)

Estimated Repair Time: 1-3 hours

Safety Warnings:

• Disconnect the battery before working on electrical systems.
• Allow the engine to cool before opening any components to avoid burns.