MAP SENSOR-FUEL MAP-ECU SETUP?I know you know something is wrong in that area .take it in and have someone that tunes s/c check to see if your ecu is getting messed up via map sensing-fuel-map, did you get bigger injectors?if so did you tune for them.just stuff ive seen on other cars not just nsx.is your car chipped?loose the chip.or if you want it right get a new ems and can the factory ecu.there is a reason they sell those gimmicks that trick the ecu.get one that sees the boost excepts it and lets you tune it and your injector sequence,how long open -closed.yes i will get flamed for saying all that but thats imho.even if its a simple to solve problem with the current setup I still suggest a new ems
David