Car stopped running, no spark is getting the spark plugs.

Unsolved Mystery, 2000 Hyundai Accent, 1.5 SOHC
front wheel drive. I have been trying, unsucessfully for 2 years to get this little car running, and with the price of gasoline now, it would be a great Blessing to me, being on Social Security. In the beginning the car started to lose power, and steadily got worse over a period of 2 weeks until it totally failed, at this point my brother gave me the car, not wanting to fool with it himself. When we first began troubleshooting it, the only thing we could find was NO SPARK at any cylinder. I replaced the computer with no change in the problem, then someone on this forum said, "it must be the Crank Position Sensor"
so I changed that with absolutely NO change in the problem. I wrote back in, my results, and it was suggested that maybe the O-Ring from the old CKP sensor was still on the block creating a spacing problem but that is not it because I have the old CKP sensor right here on my desk, WITH it's O-Ring intact.
I don't remember whom gave me the specs. On the voltage going INTO the coil but I DO know it was correct, However, there is obviously no voltage comming out of the coils and that is why I was pondering BOTH coils going out at once, and someone said that was VERY unlikely. They DID say that maybe the Crank Position Sensor may not be getting grounded to the computer or ECU. How can I determine this? Can I find out where on the ECU it DOES ground then check continuity from that pin to the CKP sensor, this is really bugging me, I know this is a good little car that has ONLY hiway miles that My brother commuted 100 miles round trip every day for work. It would certainly be a GREAT Blessing to get this Hyundai on the road.
Sorry for the Long winded post. GOD Bless You Every One !
Steve-O