weird porblem NEED HELP!!

[Loofee95SE]

Sup guys, ahvn't post here in a while. I need help, I swap this CA into a buddy coupe about a month ago, and I replace 3 coils on it so far, I check and recheck the wiring, which i sthe same that I done on my very own CA, and evrything was done pretty much by the book. i crank up he very 1st try after the swap , for a few minutes. then we shut her down to check for leaks, crank up the 2nd time #2 coil dead. check and recheck, swap a working coil in, drove fine for couple of weeks, same coil on cyinder #2 , again. 2 for coils 0 for me. check it again...nothing wrong ,no code on ECU, go in coil #3. I'm not sure how long is this one going to last. but anybody with the same problems,???? please give me some pointer on where to look for what is causing this CA to fry coils?? help please. thanks in advance C