I had almost the exact same problem as you and I'm pretty sure I had those codes as well. I could not figure out for the life of me what it was. Stealership told me that my AOS was bad because hewas using some tester device and thats why the code was popping up. I replaced AOS and in the process, busted the y-tube. Well, it was $25 and a lesson well learned. As for the AOS, that cost me about $150 if I remember correctly. Still got the code. At this point I was getting really frustrated and I found out that if it was an air leak, then it would be difficult to find. So I went back, and they were able to tell me where it was. Sure enough, I had a leak in my broken brake booster hose (the one towards the front of the engine with the crescent white piece to lock it in). Spent another $40 or so and problem fixed. Whatever code I was getting, it had something to do with idling higher than normal which it was actually doing. After the replacement of the hose, it was fixed.
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