what does the DTC code P0302 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 terminal to ensure safety.
• Allow the engine to cool down before starting work.

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 signs of wear or damage.
• If damaged, replace with a new spark plug, ensuring the correct gap.
• Reinstall the spark plug and torque to the manufacturer's specifications (typically around 20 Nm).

3. Check and Replace Ignition Coil

• Remove the ignition coil from cylinder 2.
• Inspect for any physical damage or signs of arcing.
• If defective, replace with a new ignition coil.
• Reinstall the ignition coil securely.

4. Inspect Fuel Injector

• Disconnect the electrical connector and fuel line from the fuel injector for cylinder 2.
• Remove the fuel injector and check for clogs or damage.
• Clean or replace the fuel injector as necessary, ensuring proper O-ring alignment during installation.
• Reconnect the fuel line and electrical connector.

5. Compression Test

• Reconnect the battery terminal.
• Remove the spark plug for cylinder 2.
• Insert a compression gauge into the spark plug hole.
• Crank the engine and record the compression reading.
• Compare the reading with the manufacturer's specifications (should typically be around 150-200 psi).
• If the compression is low, further investigation into engine internals may be required.