Question about 2001 Audi A4

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Ck engine keeps coming on car seems to be doing ok

The ck engine light will go back off, audi says can't find any problem

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Most likely an o2 sensor for emissions. if the car is under warranty i would take it in. Keep an eye on your mpg.

Posted on Jan 10, 2009

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Posted on Jan 02, 2017

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