my Skoda Octavia NFL (2020-Present) has a strong fuel smell

Solution

1. Preparation

• Gather necessary tools and parts.
• Ensure the vehicle is parked on a level surface and the ignition is off.
• Disconnect the battery for safety.

2. Inspect and Replace Fuel Lines

• Tools Required: Socket set, wrench set, fuel line removal tool.
• Sub-steps:
  1. Raise the vehicle using jack stands to access the fuel lines underneath.
  2. Locate the fuel lines running from the tank to the engine.
  3. Inspect for cracks or signs of wear. If damaged, proceed to replace.
  4. Use the fuel line removal tool to detach the damaged line.
  5. Install the new fuel line, ensuring it is properly secured and connected.

3. Check and Replace Fuel Injectors

• Tools Required: Socket set, torque wrench, injector puller.
• Sub-steps:
  1. Access the fuel rail by removing any necessary engine covers.
  2. Disconnect the electrical connectors from the fuel injectors.
  3. Remove the fuel rail bolts and gently pull the rail with injectors away from the engine.
  4. Inspect the O-rings on the injectors; if damaged, replace them.
  5. If injectors are leaking, replace them with new ones. Reinstall the fuel rail and connect the wiring.

4. Inspect and Replace Fuel Filter

• Tools Required: Wrench set, fuel line removal tool.
• Sub-steps:
  1. Locate the fuel filter, typically found along the fuel line.
  2. Use the fuel line removal tool to disconnect the fuel lines from the filter.
  3. Remove the old filter and install the new one, ensuring correct flow direction.
  4. Reconnect the fuel lines securely and check for leaks.

5. Pressure Test the Fuel System

• Tools Required: Fuel pressure gauge.
• Sub-steps:
  1. Connect the fuel pressure gauge to the fuel rail service port.
  2. Turn the ignition to the "ON" position without starting the engine to build pressure.
  3. Observe the pressure gauge; it should hold steady. If it drops, there may be a leak.