I have a very similar problem. The 2000 lx v6 accord (106K). Every once in a while, like once a month and sometimes 2 months, it'll start but then dies right away. like its not getting enough gas or air. so to get it to work, right after crank the ignition and let go, in that 2 second window when the car is actually running, ill give it gas until the tach hits 3k for about 10 or 15 seconds and then the car funs fine. For me it definitely isnt the battery or alternator. It hasnt died in about 2-3 months now. I thought it might have been the PCV but ive changed that and that wasn't it. What I do do right now is make sure im current on my oil changes b/c for some weird reason, and im only testing this right now, maybe it has something to do with the oil change

-cl206