What is the cause of the Audi 80's engine misfire?

I have been experiencing a slight misfire in my Audi 80's engine. It seems to happen mostly when the engine is cold, but I'm not sure what could be causing it. Any insights would be greatly appreciated.

The most common cause of an engine misfire in an Audi 80 is a faulty ignition coil. It's a relatively easy and inexpensive fix. Just make sure to replace all of the coils at the same time to prevent future issues.

Another possible cause of an engine misfire could be a clogged fuel injector. This can be caused by dirt and debris in the fuel system. Try using a fuel system cleaner and see if that improves the issue.