95 sonoma blows ecm fuse

i have a 1995 sonoma with a 4.3 Z code and a 5 speed transmission. i took off from a traffic light a couple days ago and it died. come to find out it blew the ecm batt. fuse. so i replaced the fuse and drove it home. it was fine for a couple days and then it did it 2 more times. seems to be when i'm taking off or at slow speeds. it has a new sending unit, fuel pump, and fuel filter. can anyone give me any idea what might be causing this?