how to fix the catalytic converter issue in my Skoda Octavia NFL (2020-Present)

Solution

1. Preparation

• Tools Required: OBD-II scanner, jack stands, socket set, torque wrench, safety goggles, gloves.
• Safety Warnings: Disconnect the battery before working on the exhaust system; allow the vehicle to cool down before starting.

2. Remove the Catalytic Converter

1. Lift the vehicle and secure it on jack stands.
2. Locate the catalytic converter in the exhaust system.
3. Using a socket set, remove the bolts securing the catalytic converter to the exhaust manifold and the exhaust pipe.
4. Carefully lower the catalytic converter and disconnect any sensors (such as O2 sensors) attached to it.

3. Inspect the Catalytic Converter

1. Check for any physical damage or clogging in the catalyst material.
2. If the catalyst is damaged or severely clogged, replacement is necessary.

4. Install New Catalytic Converter

1. If replacement is required, install the new catalytic converter in the reverse order of removal.
2. Ensure all bolts are tightened to the manufacturer’s torque specifications (check the repair manual for specific torque values).
3. Reconnect any sensors that were disconnected.

5. Reconnect Battery and Test

1. Reconnect the vehicle's battery.
2. Start the engine and allow it to reach operating temperature.
3. Clear any error codes using the OBD-II scanner and monitor for proper operation.