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O2 sensors and now CAT S70 1998

posted by  KlausC on  Sat Feb 9 10:32 CST 2013
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last visit: Fri Oct 24 10:15 CST 2014
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I found this thread in the UK:

http://www.volvoforums.org.uk/showthread.php?t=141000

While it does not resolve the issue, it will give you a few ideas as to what is going wrong. I am having the same problem with a 2001 Audi, the dealer has no clue and wants to throw a new cat on it. I think that there is a vacuum leak somewhere messing with the fuel mixture.

The rear O2 sensor was still good, it was reporting data just as it should. Perhaps a good 'hot' run after looking for leaks. Don't forget to look for a leak in the exhaust before the cat.
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My name is Klaus and I am a V♂lv♂holic






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New O2 sensors and now CAT [S70][1998]
posted by  Gentleman  on Sat Feb 9 09:42 CST 2013 >


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