when i get a little aggressive on the throttle it sputters for a second and sounds like its gonna die but doesnt. when im driving and try to get on it alittle it bogs down and stops moving forward but kicks back in. no check engine light . i tried to pull codes anyways and didnt get any . could it be the IAC? i just put a new EGR valve on not to long ago.

 

Did it do this before you put the egr valve on? Doesn't hurt to pull the IAC and make sure everything is clean. Passages etc. And check the throttle body for cleanliness too. Then take it from there if you still have an issue? How old is everything? Plugs, injectors etc. etc.