Cold stalling

Both those codes relate to the fact that the engine is running lean for some reason. A leaking intake manifold would cause that problem. Leaking intake manifolds tend to make the engine run badly both while cold and while hot. You should replace the gaskets, even if it's only a step towards repairing the problem you have.

This is a theory, but this is why I think you should replace the heads as a step towards repairing your problem. I believe your vehicle has aluminum heads, and while cold the gap between them and intake manifold may be large enough to cause the stalling. But after reaching operating temperature, they have expanded to close that gap enough so that the car remains running. Aluminum responds to heat by expanding on a drastically larger ratio than steel or iron. Keep us posted.