How to fix misfiring issue in my Audi 80?

I have been experiencing a misfiring issue in my Audi 80 for the past few weeks. The engine seems to be running rough and there is a noticeable lack of power. What could be causing this issue and how can I fix it?

One possible cause for a misfiring issue could be a faulty or worn spark plug. It's important to check and replace them if needed.

Another common cause for misfiring is a clogged fuel injector. It's recommended to have them cleaned or replaced by a mechanic.