Intermittent engine shutting off while driving

Car runs perfect, but about every 4 or 5 days, will drive down the road and shut off, try to crank it back up and it will runs for about 3 seconds and quit again.
Ran a code scanner on it, said bad MAF. So changed it, cleared codes, ran great for 3 days, then quit going down the road, towed it home, code scanner again, again says MAF (even after new one put in) cleared codes, ran great again for 3 days then same thing, been doing this like this (every 3 days) for a month now, but whenever you clear the code, runs great, no miss, nothing.
have replaced the MAF 3 times now, also put in new ignition switch, fuel filter,
Im at a loss as what is causing as code scanner only ever shows bad MAF sensor (even when it's a new one).
As mentioned, car runs great, no misses or engine lights, for 3 days, then quits while driving, when quits, will crank and run for 3 seconds and shuts off. Clear codes runs great again for 3 days.
Any suggestions on where to look next?