As Yoof points out - the white 3-pin plug that's currently plugged into the CO pot (boost intake pipe to the right of the throttle body) needs to plug into the white connector on the back->right of the throttle body.
The black 3-pin connector with 3-wires (blue, blue/white, brown) that's currently plugged in the back of the throttle body should be plugged into the CO pot.