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Have you changed the oil cap? Mine had the same codes and I replaced everything you did. O2, MAF, AOS, plugs, etc. I changed the fuel and oil caps to new and it seemed to fix the problem. Looking at my oil cap and fuel cap, there was small cracks on the o rings. My codes seemed to always come up during traffic and city street conditions. Less on highway going at the speed limit or a little above.
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