92 pontiac problems stall when hot starts up as soon i put it into gear stalls again?

the car starts fine runs great for about 30 min then when i have to hit the breaks it stall it will start right back up if i put it in drive or reverse just dies i have to wait about 30 min for everything cool down before i can get it to run again it idle werid sometimes it rev up then bogs down it a 92 pontiac grand am 2.3 litter 4 cyl i replaced fuel pump fuel peruser regulater fuel injetors had the coil pack tested and ecm new plugs and boots tottle postion sensor crankcase senor fuel filter so im lost any idea