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Discussion Starter #1
This code is haunting me and my 99 v6...It says that bank one is leaning out....so far I have replaced both o2 sensors and replaced the flex pipe because it was damaged from driving over speed bumps. After all this I thought that the cel wouldnt return but it has....what else could be causing this code?
 

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Discussion Starter #3
Yes it does help a little I have taken the mas apart beofre and cleaned it even though it wasnt that dirty...so I guess then maybe I should just replace it
 

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I would try another before you buy if possible.
 

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before replacing the air mass make sure there are no air leaks around the mainifold i once had a brake servo leaking air and was causing this code
 
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