1991 trans am gta 5.7 Tpi
It runs fine when I unplug a fuel injector but as soon as i plug it back in it dies. Does anyone know why, it dosent matter which injector it is either.
Changed coil, checked tps, injectors are at the right ohms, fuel pressure and flow are both good please help thanks

 

It also sputters when taking of and idles bad , we were driving and it just died on us im starting to think its the ecu please reply thanks