How to troubleshoot engine misfire in my Vauxhall Astra?

I've noticed that my Vauxhall Astra's engine has been misfiring, causing a rough idle and poor performance. What could be the cause of this issue and how can I fix it?

First, check the spark plugs and wires for any signs of wear or damage. If they look fine, the issue could be with the ignition coil or fuel injectors. It's best to take your car to a mechanic for further diagnosis and repair.

Another possible culprit could be a faulty mass air flow sensor. This can cause a misfire as it affects the air-fuel ratio in the engine. Try cleaning or replacing the sensor to see if it helps.

A clogged fuel filter can also lead to engine misfires. If it hasn't been replaced in a while, consider getting it changed.