[danielsatur]

Usually I don't throw parts at a car, because test's are so much cheaper.
A bad MAF sensor won't always throw a code.

During the cold engine start, the air/fuel mix must be right!
It's going tobe rich, because of a longer fuel pulse is needed, and the signal from the MAF sensor needs tobe correct for the Air/fuel mix.

Look at it like a chocking effect during a cold start, so your car can start.