my Skoda Octavia NFL (2020-Present) has a check engine light and rough running

Solution

1. Preparation

• Gather tools and parts needed for repair.
• Disconnect the battery to ensure safety while working on electrical components.

2. Addressing Faulty Spark Plugs/Ignition Coils

1. Remove the engine cover using a socket set.
2. Disconnect the electrical connectors from the ignition coils.
3. Unscrew and remove the ignition coils from the spark plug wells.
4. Remove the spark plugs using a spark plug socket; check for wear and gap specifications.
5. Install new spark plugs, ensuring correct torque (typically 13-15 lb-ft).
6. Reinstall ignition coils and reconnect electrical connectors.

3. Inspecting and Cleaning Throttle Body

1. Remove the air intake duct to access the throttle body.
2. Disconnect the throttle body electrical connector and remove the mounting bolts.
3. Carefully remove the throttle body from the intake manifold.
4. Clean the throttle body using throttle body cleaner and a soft cloth.
5. Reinstall the throttle body, reconnect the electrical connector, and secure with mounting bolts.

4. Checking and Repairing Vacuum Leaks

1. Inspect all vacuum hoses connected to the intake manifold for damage.
2. Replace any damaged hoses with OEM replacement parts.
3. Use a smoke machine to check for hidden vacuum leaks if necessary.

Tools Required:

• OBD-II scanner
• Socket set
• Spark plug socket
• Torque wrench
• Fuel pressure gauge
• Throttle body cleaner
• Screwdrivers

Parts Required:

• Spark plugs
• Ignition coils (if faulty)
• Vacuum hoses (if damaged)

Estimated Repair Time: 2-4 hours

Safety Warnings:

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