What are some common issues with the Vauxhall Astra's emissions system?

I have been experiencing issues with my Vauxhall Astra's emissions system and I'm not sure what the problem could be. Can anyone provide some insight on common problems and how to fix them?

One common issue with the Vauxhall Astra's emissions system is a malfunctioning EGR valve. This can cause problems with the car's emissions, resulting in decreased performance and potential engine damage. It's important to get this fixed by a professional to avoid further damage.

Another potential issue could be a faulty oxygen sensor, which can lead to increased emissions and poor fuel efficiency. It's important to have this checked and replaced if necessary to keep your Astra running smoothly.

Regular maintenance and cleaning of the mass air flow sensor can also help prevent issues with the emissions system. Make sure to have this checked during your routine services to avoid any potential problems.