Car is idling at 3000 and over will stall out when driving.

What is your question?

Sometimes it will run good at about 1000 rpm sometimes 2000 then sometimes it will be at 3000 and stall out then wont start. I replaced the throttle body and my boot going i to the breather box with the maf sensor i black taped because it had a hole. I heard u may have to relearn your idle? Will someone please help this is crazy it is winter and i have a two year old i cant keep breaking down!!