skeedad

I have a 93 S-10 with a 4.3 engine (87K Miles) and it will not start until i prime the throttle body , then will run fine until i let it idle then it stalls and will not restart w/o priming again??? I replaced the fuel pump and oil sender, still the same? Any help will be greatly appreciated! By the way i put the scan tool on and shows code 12 all systems normal???

Run a fuel pressure test on it and post back readings.
MT