There's no single answer to how many horsepower a 1993 2.0-liter 4-cylinder engine produced. The horsepower varied significantly depending on the *make and model* of the car. Different manufacturers tuned their 2.0L engines differently, resulting in different power outputs.
To find the horsepower for a specific 1993 car with a 2.0L 4-cylinder engine, you'll need to specify the make and model of the vehicle.