I WAS TAKING OFF AND THE MOTOR JUST DIED,NO COUGHING LIKE RUNNING OUT OF PETROL

You either have been using bad gas, a defective fuel pump and or fuel filter or, you have trash in your gas tank.

Olds what model please. Thanks

If you have a carb its chock .If injection its fuel related filters regulator restrictions if fuel flow ect.

run fault codes and check for speed limiter related fault

whats the odds of one or booth of your catalytic converters is plugged up?

that can cause u to run than die . if your exhaust dont go out , your motor chocks and coughs , than gags .

Water condenses in tanks not completely full & petrol degrades to "near enough" kerosine if left for too long. Also lacquer in the petrol forms a film on filters etc. So you probably have a system filled with water & lacquer now. Suggest drain tank & full flush of lines & filters.
Injectors (if fitted) may need cleaning too. It ran before all the gunk worked loose and clogged everything.

There is a cold start valve on the throttle body,may just need a clean.Check for damp in the ht leads and use wd40 or another lube to dispell moisture.Check your vacuum hoses for splits as at that age they will have cracks and leaks not visible even after removing.Have you ever changed the petrol filter just as a precaution and what is the condition of the sparkplugs as worn one work on hot tempretures but mess around in the cold.

It's a Dodge, what more do you want?