Blowing engine control 30amp fuse - 1994 Jeep Grand Cherokee

Basically what you want to do here is put a 25 watt bulb across the blown fuse.the dead short will limit the current to 2 amps and light up the light bulb.check all the wires in the ignition circuit one at a time,disconnecting them one at a time until the bulb goes out.then you know which line is drawing current. to blow a 30 amp fuse,that is 360 watts.looks like a short in a wire somewhere,or the ignition module that drives the ignition is shorted.find the module that is connected to the coil packs and disconnect it.see if the short is still there..