my Skoda Octavia NFL (2020-Present) stalls at stoplights what should I do

Solution

1. Preparation

• Gather necessary tools and parts.
• Ensure the engine is cool before starting work.
• Disconnect the vehicle battery to prevent electrical shorts.

2. Clean the Throttle Body

• Tools Required: Throttle body cleaner, soft brush, rags
• Remove the air intake duct to access the throttle body.
• Spray throttle body cleaner into the throttle body and scrub gently with a soft brush.
• Wipe clean with rags to remove any carbon deposits.
• Reinstall the air intake duct and ensure all connections are secure.

3. Inspect and Clean the Idle Air Control Valve (IAC)

• Tools Required: Socket set, screwdriver
• Locate the IAC valve, usually attached to the throttle body or intake manifold.
• Disconnect the electrical connector and remove the valve using the socket set.
• Clean the valve with throttle body cleaner and inspect for wear.
• Reinstall the IAC valve and reconnect the electrical connector.

4. Check for Vacuum Leaks

• Tools Required: Vacuum gauge, hose clamp
• Inspect all vacuum lines for cracks or disconnections.
• Use a vacuum gauge to check for proper vacuum readings at idle.
• Replace any damaged hoses or fittings.
• Ensure all connections are tight and secure.

5. Reconnect Battery and Clear Codes

• Reconnect the vehicle battery.
• Use the OBD-II scanner to clear any error codes.
• Start the engine and allow it to idle, monitoring for any abnormal behavior.