my Skoda Octavia NFL (2020-Present) check engine light keeps coming on, what should I check?

Solution

1. Preparation

• Gather tools and parts.
• Ensure the vehicle is parked on a flat surface and the engine is cool.
• Disconnect the negative terminal of the battery to prevent electrical shorts.

2. Address Error Codes

• Connect the OBD-II scanner and record the trouble codes.
• Research the codes to determine the underlying issues.

3. Inspect and Replace Components

A. Gas Cap Check

• Remove the gas cap and inspect for cracks or wear.
• Replace with a new gas cap if necessary.

B. Spark Plug and Ignition Coil Inspection

• Remove ignition coils and spark plugs using a socket set.
• Inspect spark plugs for wear; replace if they show signs of fouling or damage.
• Test ignition coils with a multimeter and replace any faulty coils.

C. Vacuum Leak Repair

• Visually inspect vacuum hoses for cracks or disconnections.
• Replace any damaged hoses.

4. Reconnect Battery and Clear Codes

• Reconnect the negative battery terminal.
• Use the OBD-II scanner to clear any error codes from the system.

5. Final Checks

• Start the engine and allow it to reach operating temperature.
• Observe for any unusual noises or irregularities in engine performance.