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Speedy, I too am having the same codes and it started just two maybe three weeks ago. I've done the same things you have, cleaned the MAF, checked for vacuum leaks, checked the oil cap, replaced all the coils, and cleaned the throttle body. Once I clear the codes, about 50 miles later they come back. I am currently late on the smog test due to the CEL and monitors not clearing.
I'm wondering if the low humidity we have been having in the last month could be the problem. All summer long I've had no CEL, but two weeks ago they popped up when the cooler dry air came in.
Anyone else have this issue?
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