So my car has a cold hesitation problem. Basically, up until the car is at operating temp. the car will randomly lose roughly half it's power and jerk for a second, then regain the power back. Obviously it must have to do with something that deals with cold operation. I've had the temp sensor changed recently and tested the air regulator using the hose pinch test. I'm leaning towards the iacv, which I think is affected by the air regulator because when the regulator is open the iacv is somehow interrupting the air flow. It's a long shot, but what else can be the cause?
