Hi. I replaced the clutch on my 2012 Honda Fit last weekend. It was hard as hell but I got it done without any major hitches but one. There is a small tube that plugs into the top of the transmission -- it's right between where the two clutch pedal cables attach. There is no mention of the tube in the Haynes manual I bought, and I lost track of where the other end goes. I'm pretty certain it's related to the emissions control system, but for the life of me I couldn't figure out where to plug the other end.

Anyone have any ideas about this? The tube I'm referring to is in the center of the photo below.