Just ran into this myself, so Thanks!
Welcome to SC!
Basically Your ByPass Valve (BPV - aka dump valve) or the the solenoid for it is not sending a good enought signal to the Engine's computer. WIS also states that your code P1110 is genersted when the valve doen't open during deceleration.
It's a great excuse to put some Bling right where everyone would see it.