How can I troubleshoot my Audi 80's ignition problem?

My Audi 80 is having issues starting and igniting. The engine seems to crank but won't start. What could be causing this and how can I diagnose and fix it?

First thing to check would be the spark plugs and wires. They may need to be cleaned or replaced if they are old and worn out. Also check the ignition coil for any damage or wear.

It could also be an issue with the fuel pump. If it is not functioning properly, it can prevent the engine from starting. You can test the fuel pressure to see if it is within the correct range.

Another possibility is a faulty starter. If it is not engaging properly, it can prevent the engine from cranking. Check for any strange noises or grinding when trying to start the car.