What should I check if my Vauxhall Astra is experiencing engine misfires?

My Vauxhall Astra seems to be hesitating and shaking while driving. What could be causing this and how can I fix it?

First, check the spark plugs and wires to see if they are worn out or damaged. These are common causes of engine misfires. If they are worn out, make sure to replace them with high quality ones. Also, check the ignition coil for any signs of damage. A faulty coil can also cause engine misfires.

Another potential cause of engine misfires can be a clogged fuel filter. Make sure to replace it if it hasn't been changed in a while. It's also a good idea to check the fuel pressure to ensure it's at the correct level.

If the above steps don't solve the issue, it's possible that there is a problem with the fuel injectors. These can become clogged or malfunction over time. Consider getting them cleaned or replaced by a professional mechanic.