long story short i have a 30-1020 box with epm/aem coils/twin fire bought the stuff about 2 years ago ...having a break up issue ,now what im thinking about back when i sent in my aem 30-1020 to be modded for c.o.p they had to mod the jumpers to run it .now do they just move the 1-4 jumpers or do they also move the 5th jumper..reason asking is cause after i got the 30-1020 back from being modded the number 4 coil driver went bad due to wrong instruction in twin fire box so after some reaserch aem told me to turn off coil 4 and run coil 5 so thats what i did and car always had a miss now im wondering if they moved jumper 5 inside the 30-1020 box or am i getting a missfire cause it is not moved and does it hAVE TO BE MOVED??