What are the most common issues with the fuel injection system in an Audi 80?

I've noticed some performance issues with my Audi 80 and suspect it may be related to the fuel injection system. Can someone explain the most common problems with this system and what steps I can take to troubleshoot and resolve them?

One common issue with fuel injection systems in Audi 80s is clogged or dirty fuel injectors, which can cause a lack of power and poor fuel efficiency. To address this, you can try using a fuel injector cleaner or have the injectors professionally cleaned.

Another issue that can cause poor performance in the fuel injection system is a faulty fuel pressure regulator. This can result in inconsistent fuel delivery to the engine and should be replaced to improve performance. Regular maintenance of this component can also prevent issues from occurring.

Aside from mechanical issues, fuel quality can also affect the performance of your Audi 80's fuel injection system. Low quality or contaminated fuel can lead to clogging and other issues. Make sure to always use high quality fuel and consider using a fuel addictive to prevent issues.