please help!! s200

[fastasseg]

please help!!!! as soon as my car reaches one pound of boost the check light pops on and the car shuts off but when you let off the gas it go"s away. if you unplug the vacume line from the map sensor it will boost, but i tried changing the map and it did the same thing, im using s200 with three bar map on 18psi built type R car was running great until now 10.8 @ 131.9 16 psi on pump gas in E K hatch