So i bought a 2005 Scion xB YESTERDAY with 107,xxx miles. Today as I'm driving along enjoying this little car I look up and my readouts are all lit up. There is a CEL, it showed traction control off, and one other thing. This all seemed to happen out of the blue. Took it to Autozone where they read the dreaded P0012 Code. I wanted to cry. There's nothing I can do about it at this point, perhaps the ecu was reset to hide this code by prior seller, IDK. I ask you all to please have mercy on me and tell me what I should first replace. There's a lot of info out there should I start by buying a new camshaft position sensor? Should I start by cleaning out my OCV? Please give me a link that you think would be best, I don't notice rough idel, hard start up time or anything, the car seems to drive fine to me.

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I just called the dealership out of panic. It is a $100 diagnostic fee. My appointment could be monday.
Just contacted the previous owner and he said he was putting in 85 octane gas....in the mountain states they have it because of the high altitude, i always wondered who actually used it. I'm going to pray that the problem is bad gas and hopefully soon the tank will run out and I will be able to get some proper gas in there. Please let me know if there is ANY advice out there.

 

Don't know about the old xB's, but my 2014 xB2, has a no 85 on the gas cap.

hope its just bad gas!

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So it was the P0012 code. Finally finished repairing it.
I went ahead and made a video because I found very little info out there. This is for the P0012 repair but can help with a few different things if you watch all three parts:

Part 1 Part 2 Part 3 P0012 Fix DIY Scion xB Part 3

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