Intermittent sputtering

I have a 1994 Dodge Ram 1500; 190,784 miles; 5.2 engine. 2 months ago it stopped. It sputtered (oil light came on and off), then went dead. The crankshaft sensor was replaced. It started again, but still had the sputtering but not as much. About 1 month later the sputtering has gotten worse. Took to a diagnostic shop and after repairing a "intake leak", then said it was the computer. I replaced the computer and it still sputters. While driving it will "jerk" and feels like rough idle and almost die, but doesnt. No one seems to know what the problem is. Also the tune up was done as well. Any help in this area would be greatly appreciated. Thanks.