Chrysler Repair: Random stalling: 91 Chrysler 3.3L, camshaft position sensor, throttle position sensor

Question
QUESTION: I have a 91 Chrysler Imperial 3.3L EI. I have no idea why it randomly dies. I can never get it to die the same way twice. When it dies, it's like i just turned off the key while driving (Absolutely no notice). I replaced the camshaft position sensor and the throttle position sensor. it looks to me like the ECM has already been replaced before, but it wouldn't surprise me if it has failed again, i just need to know why. All i need to know is what and why. i know how to replace any part on any vehicle, its just where electronic diagnosis comes into play that i fall flat on my face. I've been reading up on fuel injection and what components coincide with fuel injection. I understand how they work i just don't know what happens when one component fails. So if you could kindly let me know how to at least narrow down my problem, that would be very much appreciative

ANSWER: Hi Bruce,
If you aren't familiar with the fault code readout capability this may be your solution. Turn the ignition key:"on-off-on-off-on and leave on" doing that in 5 seconds or less elapsed time. Then watch the check engine light, which remains "on". to see it begin to flash, pause, flash, etc. Count the number of flashes before each pause. Then repeat the process to be sure of an accurate set of counts. Tell me the counts in order of appearance and we'll go from there based upon the codes.
I suspect it might be the other rotataional sensor (crankshaft) which would be seen as a pair of one flash each counts (the code would be 11) but let us see.
Roland
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QUESTION: The light blinks once, twice, pause, five, five. according to my sources it has something to do with the power disconnecting from the computer for 50 to 100 cycles. and the 55 code is the end of codes.

Answer
Hi Bruce,
Nothing shows on the codes that would cause stalling. So I would recommend that you check your egr valve (exhaust gas recirculation) which is next to and under the throttle body, mounted with the valve and stem horizontally, hidden inside a flange that separates the body of the valve from the round vacuum-operated top. That stem has a slot and you can use the tip of a screw driver to move the stem back and forth, against spring-action in one direction. It should close tightly to a dead stop by that spring action. What often happens is the valve action gets gummed up so it hangs up ajar. That causes the engine to stall becuase the mixture is too lean. Spray some WD-40 on the stem where it enters the valve body and then move the stem back and forth with the screwdriver to free up the 'action'. I think that will solve your problem.
Roland
PS Please 'rate' my answer and where you see the question about a nomination to be "volunteer of the month" consider giving a 'yes' answer. Thank you.