Cadillac Repair: 92 Deville, stalls after 20 minutes, no spark at plug, e 53 code, does start after car cools down., check battery, battery connections

Question
Hi I have installed new rotor, dist-cap, ign-module, coil, check battery connections, car has half a tank of fuel.

It will run for 20 to 30 minutes and than stall. I have checked for spark at the plug after it stalls and there is no spark.
It will start back up after it cools down for 45 minutes.
Once it starts, it will run for 20 minutes or so and stall.

There is no spark at the plug.

Any idea what is going on here? Any suggestions or help is very much appreciated.

Thanks
The code states E 53, distributor signal disruption.

Answer
If you are mechanicaly inclined or know of someone who is, You will need simple electrical schematics, Test procedures and picture locations of the components within the system that is causing you problems of which can't be done on this website which only allows one picture. I do not have a website so you will have to e-mail: onlineautohelp@msn.com in order to obtain the information.