I recently installed an short ram intake on my 1990 Accord. There are to holes on the intake. One going to the oil and the other going to some type of sensor. Is it okay to have the sensor one just plugged up instead of actually hooking it up?

 

Are you referring to the "oil" being to the valve cover?

That's the one you want to have connnected. If the CB is similar to the CD, does that second vacuum line go to a sensor near the battery area? You can uninstall that.