Engine Light

The engine light came on, and i read it with my reader and this is what showed up

What does this mean?

http://engine-codes.com/p2440_volkswagen.html

Possible causes:
- Faulty Vacuum Switching Valve (VSV)
- Vacuum Switching Valve (VSV) harness is open or shorted
- Vacuum Switching Valve (VSV) circuit poor electrical connection
- Faulty Pressure Sensor
- Faulty Air Switching Valve