Skoda Octavia NFL (2020-Present) check engine light keeps coming on how to resolve

Solution

1. Preparation

• Gather tools and parts.
• Park the vehicle on a flat surface and set the parking brake.
• Disconnect the battery to ensure safety during repairs.

2. Replace Faulty Components

• Identify and replace the faulty part based on diagnostic codes:
  • If codes indicate spark plug issues:
    • Remove spark plug cover using a socket set.
    • Disconnect ignition coils and unscrew spark plugs using a spark plug socket.
    • Install new spark plugs with a torque specification of 12-15 Nm.
    • Reconnect ignition coils and replace the spark plug cover.
  • If codes indicate a fuel system problem:
    • Locate and replace faulty fuel injectors.
    • Disconnect fuel lines carefully to avoid spills.
    • Install new injectors and reattach fuel lines securely.

3. Clear Error Codes

• Reconnect the battery.
• Use the OBD-II scanner to clear any stored error codes.
• Start the engine to ensure the check engine light is off.