i jus bought this 90 hatch with a b18a swap. car was running fine untill this morning. its puttering and chugging till 4000rpm. idles at like 450-1000. it wont die out but when i start moving i have to peddle the throttle to get it to 4000 then i can jus drive it normal. idea's please! i am not a newbi to the honda scene. i have a 91 si with b18a turbo swap, it runs flawlessly also