1999 Saturn SC1 no spark @ cyl. #2 & #3

This car began to run sluggish with very little power the other day. The check engine light came on. I found out that cyl. #2 and #3 were not getting any spark. I checked the wires, both coils and the ignition module of which there was nothing wrong with any of them. I asked the guy at autozone where I had the module checked what else could it be and he said the only thing left to check was the crankshaft position switch or the computer. Is this true? If so, where is the cps located on this car?