bobbyeg6

Ok so i had my car takin to a deal and obd-1 test hooked up to it, its a 92 civic si, and the test said one of two things, fuse box, ELD on back or ECU.
My ecu is chipped and tunes crome. so i said ill get a fuse box out a junk yard car. i did and installed, well both fuse boxs had number #12 slot blocked out, i found a site that states that #12 is a 15 amp witch was for the ELD.
car stopped the problem and then i installed the fuse, it started again then i took it out and it keep on doing it, could i have fried the box agian an need a new one again?? what it sound like.