1988 Other Audi Models Engine cranks over but does not start

Engine Mechanical problem
1988 Other Audi Models All Wheel Drive Manual 150000 miles

The water pump has gone bad so I had it towed to the garage when the mechanic went to work on it, he said it would not start, he then told me the fuel distributor was bad and and it was replaced. There is spark and fuel but it will not start. Does anyone know where to start looking? The engine is the original 5 cylinder 2.3l