Skoda Octavia NFL (2020-Present) why is my engine stumbling on acceleration?

Solution

1. Preparation

• Gather necessary tools and parts.
• Disconnect the negative battery terminal to prevent electrical shorts.
• Ensure the vehicle is on a level surface and secure it with wheel chocks.

2. Address Fuel Delivery Issues

• Sub-step 1: Install a fuel pressure gauge on the fuel rail service port.
• Sub-step 2: Turn on the ignition (do not start the engine) to check for proper fuel pressure (should match specifications).
• Sub-step 3: If pressure is low, inspect and replace the fuel pump or fuel filter as necessary.

3. Inspect and Replace Ignition Components

• Sub-step 1: Remove ignition coils and inspect for cracks or carbon tracking.
• Sub-step 2: Replace any faulty ignition coils.
• Sub-step 3: Remove and inspect spark plugs for wear; replace if necessary (gap to factory specifications).

4. Clean the Throttle Body

• Sub-step 1: Remove the throttle body from the intake manifold.
• Sub-step 2: Use throttle body cleaner and a soft brush to clean internal surfaces.
• Sub-step 3: Reinstall the throttle body and reconnect any sensors.

5. Verify Air Intake System

• Sub-step 1: Inspect the air filter and replace it if dirty.
• Sub-step 2: Check all vacuum hoses for cracks or disconnections.
• Sub-step 3: Reassemble any disassembled components securely.