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

Solution

1. Preparation

• Gather necessary tools and parts.
• Disconnect the negative battery terminal to prevent electrical shock.
• Ensure the vehicle is parked on a level surface and the engine is cool.

2. Inspect and Replace Ignition Components

• Tools Required: Socket set, torque wrench, spark plug socket.
• Sub-steps:
  1. Remove the engine cover if applicable.
  2. Disconnect the ignition coils by unplugging the electrical connectors.
  3. Remove the ignition coils from the spark plugs.
  4. Inspect spark plugs for wear, replacing any that are damaged or have excessive carbon buildup.
  5. Reinstall new spark plugs and torque them to the manufacturer’s specifications (usually around 15-20 Nm).
  6. Reinstall the ignition coils and reconnect the electrical connectors.

3. Check and Repair Fuel System

• Tools Required: Fuel pressure gauge, wrench set.
• Sub-steps:
  1. Locate the fuel rail and connect the fuel pressure gauge.
  2. Turn the ignition to the "ON" position without starting the engine to check fuel pressure against manufacturer specifications.
  3. If pressure is low, inspect the fuel filter and fuel pump for blockages or failures.
  4. Replace any faulty components as necessary.

4. Inspect Air Intake System

• Tools Required: Screwdriver set, vacuum gauge.
• Sub-steps:
  1. Visually inspect the air filter and replace if it is dirty or clogged.
  2. Check intake hoses for cracks or loose connections.
  3. Use a vacuum gauge to check for any leaks in the intake system.

5. Inspect Exhaust System

• Tools Required: Jack and jack stands, socket set.
• Sub-steps:
  1. Lift the vehicle securely and inspect the exhaust system for any visible damage or leaks.
  2. Pay special attention to the catalytic converter for any signs of blockage.
  3. Replace any damaged components.