Rota_Fc87

Okay so heres what i have, i have an 87 FC rx7 with a 1998 ws6 drive train. I had the car running for about 3 days then it lost spark. Checked all the connections and it was all good. Had to push the car home. Anyways pez told me to check the crank positioning sensor and wires, i noticed that it wasnt plugged quite all the way in, pulled it out inspected it and put it back in, the car started up! I shut it off and walked away, 2 days later i went out to do an alternator test on it because im having a charging issue and the car wont start again. No spark once again. Im lost guys is it an ecu problem or crank sensor? how do i test these? Please let me know, im currently stationed in baumholder germany and i leave in 2 months, the car has to be operational so i really need to get the car fixed before i have to sell it or junk it. Thanks, Shane.