why does my Skoda Octavia smell like rotten eggs?

Solution

1. Preparation

• Gather tools and parts required for repair.
• Ensure the vehicle is parked on a flat surface and the engine is cool.
• Disconnect the battery to ensure safety while working on electrical components.

2. Inspect and Replace the Catalytic Converter

• Sub-steps:
  1. Raise the vehicle using a jack and secure it with jack stands.
  2. Locate the catalytic converter in the exhaust system.
  3. Inspect the catalytic converter for signs of damage, such as cracks or excessive heat discoloration.
  4. If damaged, remove the catalytic converter by unbolting it from the exhaust flange using a socket set.
  5. Install the new catalytic converter, ensuring proper alignment and torque the bolts to the manufacturer's specifications (typically 30-50 ft-lbs).

3. Replace Oxygen Sensors (if necessary)

• Sub-steps:
  1. Identify the location of the upstream and downstream oxygen sensors.
  2. Unplug the electrical connectors from the sensors.
  3. Use an oxygen sensor socket to remove the sensors from the exhaust system.
  4. Install the new sensors, tightening them to the manufacturer's specifications (typically 30 ft-lbs).
  5. Reconnect the electrical connectors securely.

4. Check and Clean Fuel Injectors

• Sub-steps:
  1. Remove the fuel rail to access the fuel injectors.
  2. Inspect each injector for any signs of blockage or leaks.
  3. Clean the injectors using a specialized cleaning solution or replace them if necessary.
  4. Reinstall the fuel rail and ensure all connections are tight.