Did you clean the whole fuel system? One of my previous CRXs sat for a good minute and ran like crap. I added some fuel injector cleaner and got on the highway pushed it (around 70-80mph) for about 45mins and that seemed to help (my mechanic at the time suggested this). Also, do you have a stock p30 (or a stock b16 map chip). I would compare how the car runs with a stock ecu to your modified one.