my car has a weird idle in the morning when it has been sitting.. i go to start it up and it starts no prob .. but after a few seconds or so it the rpms will drop down and hop back up and drop down again .. really weird.it goes away and runs fine when it warmed up .. and when i take off and the car is not warmed up it will kinda sputter .. so i floor it and then it sputters a lil more befoe it takes off like a bat out of hell and everything is fine..

not sure if this has anything to do with it .. but i unpluged the
MAS(well forgot to plug it back in) and the car idles fine during cold starts but but when you rev it it dosent rev smooth...
so i plugged it back and everythings fine .. but again the car had been warmed up ...
could it be my MAS going bad?
any ideas?