How can I troubleshoot a sudden loss of power in my Audi 80?

I was driving on the highway when my Audi 80 suddenly lost power and started making strange noises. The check engine light also came on. What could be causing this issue and how can I fix it?

It could be caused by a variety of issues, such as a faulty spark plug or a clogged fuel filter. You can try checking these components yourself or take your car to a trusted mechanic for a thorough diagnosis.

In some rare cases, it could be an issue with the engine control unit. Try getting a diagnostic scan to check for any error codes and see if this is the problem.