I was just wondering, in a 3.0, there are two tubes that connect to the intake piping. What is the one in the front next to the battery and what is the one in the back?

Just looked at it again and one looks like it goes to the back of the engine and one goes to the front. The one in the front is connected to another tube while the tube going to the back is by itself. The tube in the front is hard and the tube in the back is more plyable. I guess one of them could be a sensor but who knows?

 

They are vacum lines, why do you need to know what they are? Are you installing an intake, kinda random question if not....

 

actually...im installing an intake for my brother in his accord. He got an intake off ebay for cheap (30 bucks) but there is only one vacuum outlet on the intake that he bought. what do these vacuum lines do? can he still use this intake?