ok my idle is all messed up, when i first start the car in the morning it will start up then die I have to rev it up for a couple seconds then it will idle by its self but even then the idle surges from 400-1000 up and down all the time like its trying to die. then earlier today I stoped and it was idleing at like 1400 then I taped the gas and it droped back down. what could this be

 

could this be the IAC??

 

yes

try cleaning it and the passage

 

also check o2 sensors