How to diagnose and fix a misfiring issue in a Vauxhall Astra?

I've been experiencing a misfiring issue with my Vauxhall Astra where the engine stutters and shakes while driving. It happens randomly and is starting to affect the performance of my car. What could be causing this problem and how can I fix it?

Based on your description, it sounds like your Astra may have a faulty ignition coil. This can cause misfiring and should be checked and replaced if necessary.

Another possible culprit could be a clogged fuel filter. This can restrict the flow of fuel and lead to misfires. I recommend getting it inspected and replaced if needed.

Make sure to also check your spark plugs. Worn out or dirty spark plugs can cause misfires. Consider replacing them if they are worn or cleaning them if they are dirty.