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Old 10-17-2012, 07:32 PM
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Yorgi Yorgi is online now
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Join Date: Mar 2005
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Mein Auto: '04 M3 / '06 650i Cab
Quote:
Originally Posted by slemmer View Post
Is this replacement necessary if no codes are shown but the Increased Emissions warning is displayed? Are there any other suggesions for the same light but no codes on the scanner? I'd hate to go through the tear down only to find my CCV are ok. Thanks.. Stephen
If I had an Increases Emissions message and there were no codes I would change the CCV valves as a first step. They are low cost and very easy to replace. They are also a wear item and will eventually fail so it's not a bad idea to change them even if they don't fix the Increases Emissions message.

Do a search for "increased emissions" , there are many threads with lists of possible causes.
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