Had the same problem on a 97 with the 5.2 even pulled the tranny and checked the position of the ignition sensor again still would not fire finally hauled to my buddies shop and put it on a diagnostic scanner and cranked the engine to check the relays going to the ignition still nothing but it did flash the sensor we got nothing so we knew the timing sensor was not working in the end we replaced the ignition sensor and found that we hard damaged it when installing the tranny could not see very well on the second time around but the jeep cranked first time and has been running fine since that was almost two years ago,hope this helps.