Stalling Problem HELP!

I have a 92 240sx stock KA (automatic)and for the last couple of weeks my car has been stalling. Some of the things i’ve done to it are: change the fuel pump, changed spark plugs and spark plug wires. i’ve taken someone elses maf sensor and tried it on my car and i’m still having the same problem and i also took a coil from another car. Cleaned out the iac by spraying the throttle body. It’s really werid because it can go days without having a problem and then i’ll be sitting at a light and when it turns green and i try to give it gas it hesitates alot and sometimes it just turns off. we’ve also taken out the spark plugs and they don’t have gas on them but if u look in the piston after it stalls it looks like it flooded.
Any idea with what the hell is going on?!?!
it’s pissing me off!!! grrrr

possible vacuum leak, you sure you put the right plugs in?

culd be injector thats sticking intermittently.

true didnt think of that, what about the fuel pump maybe its faulty and its sticking? its a possibility your problem is within the parts your changed over the past weeks