93 Regal dying

Alright I have a 93 Regal Limited with 3.8. Occassionally it will die while driving down the road. After it dies it takes a while of cranking to get it started again. I have replaced the fuel pump, fuel pump relay and it still does the same thing. I pulled the codes and I got these codes 17,18,26,39. Can someone please shed somelight on this?
Matt

This tech link should help. Sounds like a crank or camshaft position sensor problem.

http://www.troublecodes.net/GM/92-93_38SC.shtml