How to fix engine misfire in a Vauxhall Insignia?

I have been experiencing engine misfires in my Vauxhall Insignia. The car shakes and the check engine light is on. What could be causing this issue and what steps should I take to fix it?

It is likely that your spark plugs are worn out and need to be replaced. I recommend checking and replacing them first before moving on to other possible causes.

Another possible cause for engine misfires in a Vauxhall Insignia is a faulty ignition coil. You should have it tested and replace if necessary.

Make sure to also check the fuel injectors for any clogs. If they are dirty, you can try cleaning them with a fuel injector cleaner. Otherwise, they may need to be replaced.