Chrysler Repair: 1992 Minivan LE - 3.3 V6: no start, code 11, plymouth grand voyager, crank sensor

Question
Hello,
I was wondering if you could diagnose my 1992 Plymouth Grand Voyager LE - 3.3 V6
The van will start when it is engine is cold and runs fine for about 10 minutes, but then stalls and will not restart for a few hours.
Code 11, 12 & 55 showed up when I checked
So far I have changed fuel filter and crank sensor.
Still nothing has changed.
Upon further testing, I have found when it will not start...
I have no spark and no power at the crank sensor or coil, but I do have voltage at the cam sensor.
What else do you suggest I can check?
I can hear the fuel pump run with I turn the key on.
So I figure that would eliminate the automatic shut down and fuel pump. Or does it?
Any additional information you may have would be greatly appreciated.
Thanks
Mike

Answer
Hi Mike,
First, have you erased the codes by disconnecting the battery for a few minutes, and then verifying that you only get 12 and 55? Then try to start it and see if you now get the 11 code again. If so, then there is still something wrong with the crank sensor circuit. The orange wire should have 9 volts on it, just like the same wire at the cam sensor. There is a dark gray 10-pin disconnect behind the
battery thru which that wire passes on the way to the crank sensor so check that out. The 12V output of the ASD powers the spark coil, the injectors, and oxygen sensor, but it doesn't power the fuel pump which has its own relay and which is activated by the same engine controller signal as the one that activates the ASD. So in that respect they do work in tandem. The fuel pump and the coil should therefore show 12V for about a second when you turn the ignition to run.
But then it is shut down until you crank the engine and get a signal from the crank sensor which should reactivate the spark coil pack  dark green/orange wire and the fuel pump via its relay. But when you are cranking you won't be able to hear the pump because of the noise. That is why you need to measure for voltage while you are cranking. So if by 'no power to the crank sensor' you mean no 9V on the orange wire then that is your problem. That 9V has to be there when the ignition is in run or start positions. Let me know if I misunderstand the situation.
If you don't get a code 11 then we have to find a reason that is unrelated to functions that are "coded".
Roland