my Skoda Octavia NFL (2020-Present) has poor acceleration after 100k miles

Solution

1. Preparation

• Gather tools and parts required for the repair.
• Disconnect the vehicle battery to ensure safety.
• Allow the engine to cool before starting work.

2. Clean or Replace Air Filter

• Remove the air filter cover using a socket wrench.
• Take out the air filter and inspect it for dirt and damage.
• If dirty, clean it with compressed air or replace it with a new one.
• Reinstall the air filter and secure the cover.

3. Fuel System Inspection

• Connect a fuel pressure gauge to the fuel rail test port.
• Turn the ignition to the ON position without starting the engine, and check the pressure reading against specifications.
• If the pressure is low, check the fuel pump and fuel filter for issues. Replace as necessary.

4. Throttle Body Cleaning

• Remove the air intake duct connected to the throttle body.
• Use throttle body cleaner and a soft cloth to clean the throttle plate and surrounding area.
• Ensure there is no debris that could obstruct airflow.
• Reattach the air intake duct securely.

5. Spark Plug Replacement

• Remove the ignition coil cover using the appropriate socket.
• Disconnect the ignition coils from the spark plugs.
• Remove the spark plugs using a spark plug socket and inspect them for wear.
• Replace with new spark plugs if fouled or worn, ensuring the correct gap is set.
• Reinstall the ignition coils and cover.

6. MAF Sensor Inspection

• Disconnect the electrical connector from the MAF sensor.
• Remove the sensor from the intake duct.
• Clean the sensor element with MAF cleaner (do not touch the sensor directly).
• Reinstall the MAF sensor and reconnect the electrical connector.