Hello everyone -- I'm trying to do some trouble shooting here with my 2000 Hyundai Sonata. We just replaced the purge valve over the weekend and still we have the Check Engine light. The person working on the vehicle for me was looking in the rear of the car at first and he pulled out a small box in the back that had been seated up in the front of the gas tank. He said that what he thought was the purge valve didn't look like the one I got from the parts store. We wound up running to the dealer who explained that the purge valve goes under the hood up front. My question in my trouble shooting is: what is the proper nomenclature for the box we looked at in the back and the thing that resembled some type of the valve with a gas(?) line running into it? These looked pretty old and I intend to try replacing them but am not sure what they're called in order to look them up online and check prices. I have a Chilton's manual coming in the mail but thought I'd check here too. Thanks for the help!