No Spark Please Help!!

[silviaspeed14]

I have an s14 with s14 sr20det swap in it and I have no spark. I have checked the coils and the coils are ok. Also I have checked and swapped the power unit out with another unit. Another thing is that i have checked the wiring and everything checks out ok. I've changed the ecu twice. Also I have been through the fsm 5 or 6 times. Im all out of ideas and need some help. I have power to the coils but no spark. Not sure what the signal to the coils is suppose to be but I have 12v to pins 2 and 3 and a good ground to pin 1. When i remove the cas and spin it the injectors fire but the coils dont. I did my sr swap all most three years ago and no problems until now. Any info or experience with this problem will greatly help me find the problem.