How can I troubleshoot the fuel injection system in my Audi 80?

I have noticed that my Audi 80 is having issues with fuel injection and I am not sure how to address it. Can you provide some guidance on identifying and solving this problem?

First, check the fuel injectors for any signs of wear or damage. If they appear to be in good condition, then try cleaning them with a fuel injector cleaner. Also, make sure the fuel filter is not clogged. If the issue persists, it may be a faulty fuel pressure regulator or a leak in the fuel system. You may want to consult a professional for further diagnosis and repair.