How to diagnose and fix an engine misfire in my Audi 80?

My Audi 80 has been experiencing sporadic misfires while driving. The check engine light has also come on. What could be causing this issue and what steps should I take to fix it?

First, check the spark plugs and ignition coils to see if they are worn or damaged. If they are, replace them as soon as possible to prevent further damage to the engine.

It could also be an issue with the fuel injectors, which may be clogged or not functioning properly. Have them inspected and cleaned or replaced as needed.