[dandoc]

Have you checked your distributor at all? If the distributor cap is cracked there can easily be problems. Check for moisture on the interior of the distributor. Make sure the points in the distributor are still good, as well as lacking carbon buildup or other corrosion. Check the wires coming to/from the distributor for tightness and corrosion. I don't know enough about cam position sensors to answer your question; somebody else will have to chime in.

Concerning the fuel pump: when you turn the ignition key to "on" you should hear the pump whine as it builds pressure in the fuel lines (you may need to keep an ear out of the Jeep to hear this, or have somebody else near the fuel tank to listen). If you turn the key to "on" and don't hear the whine, you may have a bad pump. Even so, try starting the engine; it could be a very quiet fuel pump. If the engine starts and you didn't hear the pump turn on, I'd say look elsewhere for the cause of your troubles for the moment.