How to troubleshoot an Audi 80 that won't start?

My Audi 80 won't start and I've checked the battery and starter. What else could be causing this issue?

Make sure to check the fuel pump and fuel filter as they can also be common causes of a car not starting. If they are functioning properly, it could be an issue with the ignition switch.

Another common issue with the Audi 80 is a faulty crankshaft position sensor. This sensor determines when to fire the spark plugs, so if it's malfunctioning, it could prevent the car from starting.