Hi all I have 2000 EX Civic Automatic that has a manual intake manifold on it now and I believe this is causing my surging RPMS and overheating. I purchased the car this way and it appears that hoses are all over the place that they shouldn't be. Well i pulled a y8 Auto Manifold from the junkyard. come to realize it does not air injection holes. Will I be able to use this manifold without modification or should i just suck it up and pull another one with air injection?

 

nope. get the correct ones. pics of hose mess?

 

It is really difficult to plug the casting gaps on the cylinder head of a 2000 Y8 engine to effectively use an early ('96-98) intake manifold. Your best bet is to use a '99-00 Y8 auto intake manifold.