stalling when first starting up

What is your question?

my 08 grand prix stalls when I first start it up we have changed the mass air flow censor many times and it still is doing it would a bad o2 censor cause this problem it only stalls once and then restart it runs fine someone please help I am a mom of 2 and need my car

What makes this problem better or worse?

in morning or anytime of day

How long has your 2008 Pontiac Grand Prix had this problem?

a year or more