No fire from coil- 1990 jeeo cherokee replaced coil, ignition module and coil pickup, what is left?

Are you getting power to coils, if not it could be the ignition switch, one major sign of a bad switch is dash lights go off. vehicle may crank but not start,no current to fuel pump, stalling, failure to start.

Check the MAP sensor. To see if this is the problem, assuming that the Jeep won't start but is turning over, unplug the MAP sensor and then plug it back in. If you can start it now, the MAP sensor needs to be replaced. The MAP sensor is located in the engine compartment, where the firewall meets the body at the top of the engine compartment, on the driver's side. Good luck. check map sensor first!