I have a stumper for you all, I have a 1999 Eclipse GS. Now located under the passanger side head light there is a big empty space that has some lose wires hanging and I believe 2 hoses small ones. At first I was told it was the Vapour Canister cause thats there they are located in some of the older eclipses BUUT then I was told that the 1999 Eclipse GS has the vapour canister built into the gas tank so it's back into a mistery of what this part is. Does anyone else have a 1999 Eclipse GS and know what this part is so that I can find one and get it put into my car lol. It will drive without it what ever it is if that helps