1990 Aussie rodeo 4ZE1 Stalling

Hi, i'm having trouble comming from high revs to low and stalling out engine light comes on.The other day it stopped all together no power to fuel pump hooked up to another loom and pump works with great psi.Crank the engine over and it coughs when stopped cranking, seems like the injectors are not kicking in has anyone got a solution. Col:banghead:

It could be elec short or vaccum leak.