blowing engine control fuse

hello, here we go again after 6 months since this last happened, here i go again,well at least i see the trend now it's after every 6 months or so, this problem happens, and this is the fourth time it does, here are the symptoms: 94 intrepid ES with very high mileage (close to 180K)the engine control 20 amp fuse located under the hood is popping at every attempt to start the car, last time this happened i took the ignition module out and ran an ohms test against a new one at advanced i got the same readings, so i saved my money and decided to put it back in,connected all the wires, the car started and ran ever since without me getting a closure on what caused the problem till yesterday i started it drove for 5 yards and it quits, i knew it did it again, the fuse was blown, i just dont get it with this car if there is a problem...FINE...don't f****** start at all,dont tease me with this run not run sh**T, anybody please knows what to do,where is the short to the ground, where to look,how to fix,what to buy,the engine control is just a broad connection that runs a lot of stuff and they re a million wires going to and out off of it,does anyone know what to do or should i just junk this old peace of crap ...
peace