my Skoda Octavia NFL (2020-Present) has a rough start in the morning what's wrong

Solution

1. Preparation

• Gather necessary tools and parts.
• Ensure the vehicle is parked on a flat surface and the engine is off.

2. Battery Inspection and Replacement

• Sub-steps:
  1. Disconnect the negative terminal of the battery to prevent electrical shock.
  2. Remove the battery and clean the terminals with a wire brush if corroded.
  3. Test the battery with a multimeter; replace if voltage is below 12.4V.
• Tools Required: Wire brush, multimeter, socket set.

3. Fuel System Inspection

• Sub-steps:
  1. Connect the fuel pressure gauge to the fuel rail test port.
  2. Turn the ignition to the "On" position without starting the engine to check fuel pressure.
  3. If pressure is below manufacturer's specification, inspect the fuel pump and filter for issues.
• Tools Required: Fuel pressure gauge.

4. Spark Plug Replacement

• Sub-steps:
  1. Remove spark plug wires and unscrew each spark plug using a socket wrench.
  2. Inspect the spark plugs for wear or fouling; replace if necessary with OEM parts.
  3. Apply anti-seize compound on threads and torque to manufacturer specifications.
• Tools Required: Socket set, torque wrench.

5. Fuel Injector Cleaning or Replacement

• Sub-steps:
  1. Remove the fuel injector rail by disconnecting the electrical connectors and unscrewing the rail.
  2. Inspect each injector for clogs and clean them using an appropriate injector cleaner or replace if they are faulty.
  3. Reinstall the fuel injector rail and ensure all connections are secure.
• Tools Required: Socket set, fuel injector cleaner.