Why is my Vauxhall Insignia experiencing a rough idle?

I recently noticed that my Vauxhall Insignia has been idling very roughly, almost like it's about to stall. What could be causing this issue and what can I do to fix it?

This rough idle could be caused by a number of issues, such as dirty spark plugs, a clogged air filter, or a faulty oxygen sensor. It's best to take it to a mechanic for a proper diagnosis.

Make sure to regularly change your spark plugs and air filter to prevent any issues with rough idle. These components can get dirty and affect the performance of your vehicle.

It could also be a problem with your fuel injection system. Check for any clogs or leaks and get it repaired if necessary.

I had a similar issue with my Insignia and it turned out to be a faulty oxygen sensor. I would recommend getting it checked and replaced if necessary.