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Old 05-26-2011, 06:11 PM   #9
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Join Date: Jul 2010
Location: California
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The forum is all over this issue!! Yes, while the car is running (and warmed-up) remove the oil fill cap. If it is difficult to remove the cap (high suction) and the car almost stalls when the cap is removed (while your oil fill sounds like a shop vac), you most likely have a bad AOS. A bad AOS will give you the same alarm codes you have (I’ve been there). As a result of a bad AOS oil will get on your O2 sensors and possibly mess those up, you might have to replace them. If you have a bad AOS I would replace it first, reset alarm codes and see what happens.

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