My 94maro z28 stalls

Hi i have a 94 camaro z28 and my car keeps stalling while im drivin i had it diagastic and said it was tha mass air flow sensor and tha map sensor so i changed them and goes away for a couple of days ,. And comes back wat eles could it be

It sounds like an oxygen sensor. That could also make it stall if its defective. But you should have gotten a code for that. Check for a vacuum leak going to and from the map sensor as well.