alright i noticed on the jdm models the back of the intake there isnt a vacum line but on the usdm there is a vacum line hook up. it comes off that mushroom lookin think. i think its a vaccum actuator or sumthn. i dunno. i need to know if i have a jdm motor and im puttin it into my civic that had a usdm do i need to do nethin about that vacuum or can i just plug it and let it be?

 

try to get some picturs. that will help. and the car and intake manifold it's coming off of would greatly help also.

 

Don't judge whether you have a JDM motor or not by looking for differnet vacuum lines. To the left of the exhaust manifold/header and down a bit is the engine code, if there's no last number (D15B opposed to D15B7 or B18C instead of B18C5) it's JDM.

 

a jdm motor and a usdm intake manifold will both fit, and vise versa. question is, would they work properly?

thats why i ask which vaccum line are you concern about, take pictures if you dont know what its called. i've ran jdm manifold with missing parts that usdm had and jdm didn't and it ran fine, i also seen jdm manifold that fit but is very different compare to the usdm version and it didn't even start.