How do I fix the engine misfire on my Vauxhall Insignia?

I've been experiencing a rough idle and hesitation when accelerating on my Vauxhall Insignia. I've checked the spark plugs and ignition coils, but they seem to be in good condition. What could be causing this engine misfire and how can I fix it?

One possible cause of an engine misfire in a Vauxhall Insignia is a faulty fuel injector. I would recommend getting it checked and replaced if necessary.

Another common cause of engine misfires is a clogged air filter. Make sure to clean or replace your air filter regularly to avoid this issue.

You may also want to check your fuel pressure and make sure it's within the manufacturer's recommended range. If it's too low, it could be causing the misfire.

Lastly, it's always a good idea to have a professional diagnostic scan done to pinpoint the exact cause of the misfire. Sometimes it could be a problem with the engine control module or other components.