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check engine light on/code po171/ oxygen sensor S60

posted by  KlausC on  Sun Dec 12 10:22 CST 2010
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last visit: Fri Oct 24 10:15 CST 2014
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Because the O2 sensors are expensive, you really should look for vacuum leaks or any other air leaks around the intake manifold first. P0171 just says that the combustion is too rich or too lean and can no longer be compensated by changing the fuel enrichment.

The two O2 sensors do not get replaced in pairs, the rear usually lasts much longer than the front. If you do decide that the front O2 sensor needs replacing, get one that is Volvo specific, you do not want to splice wires!

Klaus
--
Always willing to listen, just not able to take direction.






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New check engine light on/code po171/ oxygen sensor [S60]
posted by  eckloffe  on Sat Dec 11 11:30 CST 2010 >


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