Engine bogs and hesitates whn cold

my DOHC ZC bogs and stalls when cold. After she's warmed up, she runs fine. What could be causing this? I have no check engine codes.

Its probley normal,My car does it too. Mine will kind of sputter for a second or two which really pisses me off when trying to race up to a restaraunt at lunch time to get something to eat.

my SOHC ZC does the same man. the only suggestion i have is that you let it warm up before you actually drive it..

this seems to be a normal phenomenon with swapped 4g's.