What would cause no injector pulse on 1990 2.5 4 cylinder jeep?

Has work been done recently? If so check for pinched wires or wires melted to exhaust If not: Check fuses Your car has an ASD relay, that could be a mess, locate the relay and note if it is preventing the car from operation normal (could be a complicated electrical problem if this is the case) this relay may blow a fuse when you try starting car Is there spark? <-- important info that should be included in your refined question