I need some help guys..the thing is i ust bought a 1990 hf crx with a jdm b16a swap but its not just a stock b16a. It has a b18a1 tranny i believe and it also has a b18a1 intake manifold. The thing is... that everytime u go to start it up cold... (cold meaning that it hasnt ran for atleast 10hrs) it has trouble idling. for example when u start up any car when it hasnt been ran for awhile it will idle at 2500rpm or so until the car has warmed up but on my b16a it just barely idles at 400rpm and u have to give it alittle gas... after a min. or so it will idle at 800-1000rpm like normal. i think it may be something to do with the MAP sensor or vaccum... can someone help me? i'll try to post some pics soon thanks