Engine turns over, but won't start. Reoccuring ignition problems past 6 months.

What is your question?

So I have changed the magnet under the timing case as well as the camshaft and crank sensor. I have changed the starter, ignition switch, ignition cylinder, battery, engine control module, and I think thats all "ignition" related. My 1991 base model 3.8 buick park avenue has just over 90k miles. The problem seems to be like when my magnet needed changed since the night before last it wouldnt start, but it would crank. The next morning it started first attempt. This morning it is cranking over, but will not start. I lifted the hood and took what I believe to be the cables on the left top front of the engine near the battery and stuck a screwdriver in the cable and tried to crank it and recieved no shock. I put my ear near the gas tank and I can hear the fuel pump turn on. The battery is holding a 12-13 charge and I have full power on the interior. I have a half of a tank of fuel as I always keep it away from empty since all of these issues started occuring when I would run it low and I thought it was fuel related before changing any of these. I have not changed the spark plugs or cables, but I plan to if I can get my car started since im on vacation and stuck in the middle of no where. Why would the cables not shock me, there are 6 which is why I believe they are the cables. I know everytging about cars from these events that happened and know enough if help is given. Please help! Its hot and I would like to fix this problem today!