I"m at my wit's end. I've tried everything I can think of:
My '97 Sentra, when I start it, fires right up, but immediately acts likes it's going to stall out, and then cathes itself and runs perfectly, like all Nissans.

What could cause this hesitation?
It's got almost 94,000 miles. I've changed the plugs, wires, cap, rotor all within the last 2000 miles, and the battery a couple of thousand before that. There's no vaccuum leak, at least with pulling the PVC valve, I don't know of any other ways to check for vac. leaks. I know this isn't a major problem, and as long as my car is running well otherwise, I'm not really concerned about it, but I'd like to know if it's gonna get worse, or if its something I can fix to make it run perfectly well ALL the time. This problem has been going on for the past 5,000 miles or so, and its not getting any worse or any better no matter what I do.
THanks
Jason