my Skoda Octavia NFL (2020-Present) check engine light is blinking what does it mean

Solution

1. Preparation

• Gather necessary tools and parts.
• Park the vehicle on a flat surface and engage the parking brake.
• Disconnect the battery negative terminal to ensure safety during the repair.

2. Inspect Ignition System

• Remove the ignition coil from the affected cylinder(s):
  • Tools Required: Socket set, torque wrench.
  • Sub-steps:
    1. Disconnect the electrical connector from the ignition coil.
    2. Remove the bolts securing the ignition coil and lift it out.
• Check the spark plug condition:
  • Look for wear, carbon build-up, or damage.
  • Replace spark plugs if necessary.

3. Check for Vacuum Leaks

• Inspect all vacuum hoses for cracks or disconnections:
  • Tools Required: Visual inspection, smoke tester (if available).
  • Sub-steps:
    1. Follow hoses from the intake manifold to their connections.
    2. Replace any damaged hoses found during inspection.

4. Inspect Fuel Injectors

• Remove and clean or replace fuel injectors:
  • Tools Required: Fuel injector puller, cleaning solvent.
  • Sub-steps:
    1. Disconnect the fuel line and electrical connectors from the injectors.
    2. Remove the injectors from the rail and clean them using a suitable solvent.
    3. Reinstall the injectors, ensuring they are seated properly.

5. Verify Engine Oil and Coolant

• Check oil and coolant levels:
  • Tools Required: Dipstick, coolant reservoir gauge.
  • Sub-steps:
    1. Inspect the dipstick for oil level and quality.
    2. Look into the coolant reservoir for the appropriate level.
    3. Change oil or coolant if contaminated.

6. Reassemble and Test

• Reconnect any components removed during inspection:
  • Reinstall ignition coils, fuel lines, and vacuum hoses.
• Reconnect the battery and start the engine.