what is cause of intermittent engine stall on 1997 Dodge Ram Van 2500

engine acts as if it has fuel starvation, but only intermittently. sometimes it just struggles to stay runnig and not able to increase engine rpm with additional fuel pedal press. computer check ok, no instrument panel indicators or error codes given. recent spark plug change, fuel pump pressure steady at 50lbs. when it does stop engine if i start engine directly after failure it stops within 2 or 3 seconds. if i let it rest for 15 -20 minutes she runs beautifully for another few hours

Asked by for the 1997 Dodge Ram Van 2500
really need to check the Check Engine codes and then diagnose the problem, there are dozens of possible things it could be, as you have found out by trying different parts with little success. A simple code check is NOT a Diagnosis, you need to scan the real time data to see what is going wrong and when. Here is an article we at RepairPal constructed to aid people in getting a performance/Check Engine Light problem serviced.
sorry, i did mention there were no codes,,,no check engine light. thanks for the response
Did you ever figure out the problem? I am having the same issue.
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O it gets worse it won't run after a while, getting a new computer soon tell you if it fixed the problem