More info is needed.
Does it run bad? Stalling? Hard starts?
Could just be incomplete combustion while engine is cold, which would show a rich mix back on the days of carbs and no cats. Todays EFI might be a little counterintuitive. An example: I used to run emission tests and hydrocarbons(unburnt fuel) would be highest when car was lean. Why? Incomplete combustion.
Another possibility:
I have found, at least on base toyotas from the 90s, that the cold start valve does not need to be plugged in at temps above 30F and car starts with no difference. Not sure about the 3SGTE so make sure it is functioning/plugged in.