sorry to bring this post back from the dead. I just want some clarity about what I should be doing. I got these codes on my dash driving home tonight. I JUST bought my xB 3 days ago. The night I bought it, I did "top off" the tank..
I had no idea this could happen, I always topped off my tanks in previous cars. So I bet that is the problem. I haven't had the codes read yet. But lets assume, that I'm right. Is the only thing that needs to be replaced is the evap canister? (77740-52100) ? Should I be replacing any other parts such as " Fuel Tank Filler Pipe Cover", "Charcoal Canister Assembly" "Charcoal Canister Filter No. 2" I haven't found the toyota service bulletin for my xb, but I did find one for the xA, and I believe we have the same parts. http://tijil.org/Scion_TSBs/eg04706.pdf
I'm just so frustrated.