What can cause my Vauxhall Corsa's engine to misfire?

I've been experiencing occasional engine misfires in my Vauxhall Corsa. The check engine light has also been coming on. What could be causing this issue and how can I fix it?

A common cause of engine misfires is a faulty ignition coil. You can check this by using a diagnostic scanner or by visually inspecting the coil for any signs of damage.

Another possibility is a clogged fuel injector. Try using a fuel system cleaner to see if that improves the misfires.

A dirty air filter can also contribute to misfires. Make sure to check and replace your air filter regularly.

If the misfires are only happening when the engine is cold, it could be an issue with the coolant temperature sensor.