What are the common engine issues in an Audi 80?

I have been experiencing some engine problems with my Audi 80 and I'm not sure what the underlying issue is. It would often make strange noises and occasional loss of power. What could be causing these problems?

It sounds like you may be dealing with a faulty exhaust manifold or a clogged catalytic converter. These issues can restrict exhaust flow and reduce engine performance. I would suggest taking your car to a mechanic to have it checked and potentially replaced if necessary.