I just got a 94 honda civic hatchback vx with a V-tech engine. The idle fluctuates when the engine is cold but not warm, also bogs down when in 5th gear when pressing on the gas after it is warmed up and feels like a vacuum issue. It has a air intake installed on it with 4 vacuum lines not hooked up that I can see. The only line hooked up is from the intake to the valve cover. I have installed an intake on one of these before but was a longtime ago and dont remember where they go. I'm thinking it is from the lines not being connected. 2 of them are from a canister on the firewall with a sensor. The other 2 are from the small metal lines located right behind the engine just below the intake. I remember having to T off 1 or 2 lines and plug one a with a screw on the one I did on a friends a long time ago. If anyone could get me some pictures or tell me where they go I would really appreciate it.