I can't seem to find any old threads, "404 Not Found", keeps showing up this morning but there's alot of info on that. I cleaned my tank and replaced all those hoses a few months ago. Mine were original and hard as a rock, all cracked on both ends. There's only 1 you can get to easily, 1/2" that comes out the top driver's side of the tank. The others are a PITA but doable with the tank out. here's the only one I can find, http://www.classiczcars.com/topic/24181-rating-the-factory-240z-fuel-vent-hoses/ I think replacing the hatch gasket would be my 1st attempt at getting the smell out of the cabin.