Just scanned it again and got 17544?

17544 - Fuel Trim: Bank 1 (Add): System too Lean
This means while the car it on idel the fuel system is running lean, the fuel will be running open loop from the maf readings and being trimmed by the closed loop system of the lambda sensor, which means you have a air leak of some kine somewhere.
If you can check blocks 32 you can see how bad in is in a %.