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

Solution

1. Preparation

• Gather necessary tools and parts.
• Ensure the vehicle is parked on a level surface and the ignition is off.
• Disconnect the negative battery terminal to avoid electrical issues.

2. Retrieve Error Codes

• Use an OBD-II scanner to connect to the vehicle's diagnostic port.
• Record any error codes displayed and refer to a service manual for their meaning.

3. Inspect and Replace Spark Plugs

• Remove the ignition coils using a socket set.
• Take out the spark plugs using a spark plug socket.
• Inspect for wear; replace them if they show signs of damage or are fouled.
• Torque new spark plugs to the manufacturer's specified value (usually around 20 Nm).

4. Check and Clean Fuel Injectors

• Disconnect fuel lines and electrical connectors from the injectors.
• Remove injectors from the intake manifold.
• Clean injectors using a dedicated fuel injector cleaning kit or ultrasonic cleaner.
• Reinstall the cleaned injectors with new O-rings if needed.

5. Inspect and Repair Vacuum Leaks

• Visually inspect all vacuum hoses for cracks or disconnections.
• Use a smoke machine to identify any hidden leaks.
• Replace any damaged hoses or clamps.

6. Exhaust System Inspection

• Inspect the catalytic converter for signs of blockage or damage.
• Check for exhaust leaks at joints and connections.
• Replace any damaged sections of the exhaust system.

7. Reconnect Battery and Test

• Reconnect the negative battery terminal.
• Start the engine and check if the engine light remains on; clear any codes if necessary.