SkIp_Civic_Ek6

aight guys heres my setup stock internal gsr with a skunk 2 intake manifold intake walbro fuel pump now i put a gsr computer in its fine idles normal perfect just that the computers garbage since i got a manifold and and ecu reads secondarys now i just picked up a p30 ecu everythings fine but the car idles normal like 900 rpm than it ll drop to like 6 7 hundred rpms. now this is where im lost why is it doing that wid no CEL or n e thing? with a chip p28 doesnt do it neither is it the map in dat ecu or something? and people say its leaning out my car since the maps not right its for a 1.6 not 1.8 and made for a b16?