The car tests the evap system when the coolant temperature and intake temperature are within 10* of themselves. So basically whenever the car is cold started.

If you keep getting these codes and you think its because of the gas cap tighten the gas cap, than pop the hood and pull out the EFI fuse for a minute, that erases engine codes. If the code comes back something is wrong but if not it was just the cap.

 

have you ever considered calling SCION headquarters???

 

I can vouch for some dealers having bad installs... I have an xB now but recently got rid of my Turbo Beetle...

I had ran over some sort of big rig's strap thing and it dented the gas tank. So they replaced it. Well from that point on I kept smelling gas inside the car. Everytime I took it in, they said it was the filler neck or the filler neck seal etc etc. They finally decided to re-replace the gas tank. Well it ended up being that the gas tank had a flaw and so the filler neck when attached would just pop back off.

I haven't had the xB long but could be something similar. As far as testing whether or not they screwed with your system..I'm not sure.

 

hi guys, this is my first post on scionlife, ive been on clubsciontc for a while, but i read up on your boards often. now that the formalities are done...

HELP PLEASE!

i am having similar issues with my 06 tC. i installed an injen CAI, and a couple days later i got the CEL, so i tried resetting th ECU and letting the car run idle for 10min from a suggestion i got. it worked, but then it came back on w/in 50 miles. when i got a chance, i tried resetting it again and tightenning everything i worked on/with when i installed the intake....came on again w/in another 50 miles. i got the car in september, and so needless to say im quite worried that i may already have it on the fast track to crapdome. i went to meineke yesterday and they ran a diagnostic and it came back with P0441B, and he gave me the same 'looose gas cap or filling the tank when the engines on' bs. i wasnt mad, i was actually happy i that was the case caue it means nothing was really wrong, but i went to get gas right after i left there cause my gas light was on, and made sure that thing clicked. then, on the way to work this morning it came back on.

i dont know what to do. could this have to do with the intake? im sure the thing is on tightly...im afraid to take it to the dealer cause of the intake now, i can just imagine the field day theyll have telling me THIS IS YOUR FAULT, YOU VOIDED THE WARRANTY, NOW PAY US BILLIONS OR SUFFER!

any help would be greatly appreciated...

-ben

ps - i go to the university of maryland and during the game last night at halftime won a new xB in the scion shootout they have every game - (20s to make a layup, ft, 3pt, and halfcourt shot)

 

do you have scion security? after my gf had the alarm put on by scion, it had the check engine light on for the same reason - hers is bone stock - they did fix the cel, but now the 'D' indicator light on the dash flickers....

 

i do have the scion security, but thats been on since september, got it installed when i got the car.