searched for it in the forums....anyone know where the fuel filter is on the Xb ?

I don't believe it has one, just one in the tank.

well it better have one....i do believe they replace it at 30k mile
service

check back by the gas tank. It might be in the gas line.

Here you go........Who Knows?? Might have to just call Toyota/Scion.
http://www.scionlife.com/forums/viewtopic.php?t=38694