Why would your 1998 Saturn stall while driving?

Could be as simple as a bad engine ground ( the strap between your engine and frame that looks like braided hair ). Also possible that it has low fuel pressure, if you don't have any way to test that just start by changing your fuel filter. If that doesn't work it might be the fuel pump itself starting to get weak. actually it could be a large range of things you should try to be more specific. EX: stalls when hot, at lights, etc.