What can cause the engine light to come on in a Vauxhall Insignia?

I noticed that the engine light in my Vauxhall Insignia has come on. What could be the reason for this and how can I fix it?

One of the most common causes for the engine light to come on in a Vauxhall Insignia is a faulty oxygen sensor. It's best to get this checked and fixed by a professional mechanic, as ignoring it could lead to further damage.

Another reason for the engine light to come on could be a loose gas cap. Tighten it and see if the light goes off after a few trips. If it doesn't, then it is likely a different issue.

Sometimes, a dirty air filter or a worn-out spark plug can also cause the engine light to come on in a Vauxhall Insignia. Make sure to regularly change these as part of your car maintenance.