Picked up an 2006 STI gas tank recently, and swapped everything over from my 2000 RS tank. The only question I have now is the small vac nipple\hose (the horizontal one) coming off the fuel pressure sensor. I cant recall what it connects to exactly. I'm also assuming its a vacuum hose. The STI Tank had an extra sensor to which its pressure sensor would connect to, but the RS only had the 1 (pressure sensor). Everything else swapped over without issue. Anyone have a pic or diagram they could share? Haven't been able to find anything doing searches. To be clear, this is the sensor (P\N: 22627AA110 or 22627AA111) that sits behind the hard fuel lines and next to the white, centrally located pressure release valve. It's connected to the gas tank by a small vertical hose, but the other vac connection is throwing me off. Thanks.