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engine dies 3.1 V-6 on 1996 Oldsmobile Cutlass Ciera

Every once in awhile driving down the the engine dies. I put the car in nuetral turn the key off, wait 10 to 15 seconds, vehicle restarts immediately. It may not do again for a week or it may do it the next day. No check engine light. Nobody seems to be able to figure it out. HELP PLEASE

Intermittent stalling problems like this are very difficult to solve if you can't get some diagnostic feedback while the problem is occurring. Have you checked the diagnostic trouble codes? Even though the check engine light is not on, there still may be a code stored.
This sounds like an electronic part failure, like a relay, module or a or a sensor. I don't know this vehicle well enough to know which parts commonly fail, but I would try talking to someone who does. There are a few good GM people here, hopefully they will have some feedback for you.
scanned with a Genysis, no codes. If I Coast 10 to 15 seconds it restarts. If it was a fuel pump you would think it would not restart right away. Then to make things more complicated it may not do again for a week or a day. Any ideas.
It appears that nobody else wants to help me. I'm leaning to a PCM. That still wouldn't explain why it restarts quickly.
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Sounds like a weak fuel pump. Get a quick test should be about 40-50 psi. Should take about 10 minutes.