prizm missing on 2 cylinders

My 1993 Geo prizm is missing on cylinders 3 and 4. I cannot find electrical power to the two injectors(yes, I have spark). My guess is the ECM but I would entertain any possibilities. If not I also need to find the exact location of the ECM before I disassemble most of the car trying to find it.

Theres gotta be a break in the power feed wires to those injectors.
Let me know which engine you have!
http://images6.theimagehosting.com/1993_wiring.th.gif (http://server6.theimagehosting.com/image.php?img=1993_wiring.gif)

I am not sure the ID# on the engine but it is the 1.6L L4 engine. The car will no longer start at this time.:banghead: