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Need detailed instructions & photos to replace front & rear oxygen sensors 850 1996

posted by  KlausC on  Fri Oct 9 15:16 CST 2009
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last visit: Fri Oct 24 10:15 CST 2014
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For being on a budget, you are spending too much money. Check the codes first and clear them. A slow working sensor may not turn on the CEL for a couple of weeks.
Don't forget, air leaks via vacuum lines, intake manifold gasket, and other manifold leaks cause the system to run on the rich side which coats the front O2 sensor and kills it. Fixing the manifold leaks is cheap, and then running the engine hot will clean off the O2 sensor.

The rear O2 sensor does not "follow" the front O2 sensor. It lasts much longer than the front sensor and has it's own codes when it fails.

Check on Volvospeed.com for a pic or 2.

Klaus
--
Proud owner of a 1967 220S. If I had more room, I would have more Volvos.






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New Need detailed instructions & photos to replace front & rear oxygen sensors [850][1996]
posted by  Hugh  on Fri Oct 9 12:24 CST 2009 >


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