I got my JDM h22a and there is a black box under the intake mani. I know that it controls the butterfly valves inside the manifold, I havent priced a new valve. The one one the engine I got, all the vacum hose connectors were busted off. Thus making the valve useless to me. My question is, do I really need this particular valve, from what I can tell all it wud do is restrict air flow in the first place. I have already deleted the EVAP purge solenoid, useless. This is the last thing that has got me stumbed. Please any and everybody that can help please do, and if it matters I live in arkansas so the only thing I have to really keep is a cat. Thanks for any and all help.