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Old 12-28-2009, 12:46 AM   #11 (permalink)
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Originally Posted by Thymeclock View Post
My gut feeling is that is the case.

However, short of that, a good diagnostician (I repair things other than cars for a living) looks for any clues mentioned, slight as they may be:

Maybe it's time to check that again. A previously seen and noted "burned valve" on a car that, down the road timewise, now has 160K might need a bit of attention to that detail.
I had the valve replaced 2 years ago (less than 5 k miles).
I checked the O2 sensor in a vise with a DVM and propane torch.
It works, almost 1.1v. with a flame on it and it drops to almost nothing in less than a second.

Thanks for the ideas.

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