Sleeves, thanks. It seems my R3 has the CA emissions and a rats nest of vacuum lines. All six hoses are connected to the TBs. The rubber looks in great shape and I checked for cracks in the rubber at base of throttle bodies and didn't see any. With all the vacuum hoses and not knowing where they end up, there could be an open end and I wouldn't know where to look. I feel like getting the rubber plugs and just plugging them, any idea which ones actually serve a purpose beside the MAP sensor.