how to diagnose a faulty catalytic converter in Genesis G70 IG (2017-2023)

Solution

1. Preparation

• Gather tools and parts required for repair.
• Ensure the vehicle is on a level surface and the engine is cool.
• Disconnect the battery before starting any work on the exhaust system.

2. Remove Exhaust Components

• Tools Required: Socket set, penetrating oil, torque wrench.
• Apply penetrating oil to the exhaust bolts.
• Use a socket set to remove the bolts securing the catalytic converter to the exhaust manifold and the exhaust pipe.
• Carefully lower the catalytic converter from its position.

3. Inspect and Clean

• Inspect the catalytic converter for any physical damage or excessive carbon buildup.
• If it appears clogged, clean it with a specialized catalytic converter cleaner and rinse with water (allow to dry completely before reinstalling).
• If heavily damaged, replacement is necessary.

4. Install New or Repaired Catalytic Converter

• Tools Required: Torque wrench.
• Position the catalytic converter back into place.
• Reattach the exhaust components using the original bolts, ensuring they are tightened to the manufacturer’s specified torque settings.

5. Reconnect Battery and Test

• Reconnect the battery terminals.
• Start the engine and let it idle to check for exhaust leaks.
• Monitor the engine performance to ensure the issue is resolved.