Jeep Repair: 1987 jeep, crank sensor, jeep jeep

Question
jeep turns over, has gas at the injectors, but no spark at the coil, also where is the crank sensor located

Answer
What model jeep, and what engine?

The crank sensor I beleive is the "pick-up" in the distributor itself.  But I need more information before I can be sure.  Also, most jeeps of this era are not in may area of expertise so just keep that in mind.  If I can help, I will though.
Doug