1 - There was a wifi/bluetooth topic with interesting information : [You must be registered and logged in to see this link.]
2 - You can check the laptop wccf i created in the website page : [You must be registered and logged in to see this link.]
.... With it, you may compare which components I kept to keep wifi.
3 - Maybe also the integrated drivers ? If you removed them without integrating new drivers ... have you checked if your wifi ward is correctly installed ?
Maybe this helps more