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front O2 sensor replacement advise 850 1995

posted by  someone claiming to be YURI on  Sat Nov 27 15:35 CST 2004 [RELATED]

I got 435 and 443 codes from A1 socket (cat and front O2 sensor), so I started to look for the part:FCP GROTON and EEUROPARTS both say that an extra harness is required w/ new sensor-is it true for 1995 non-turbo?

Thanks in advance.








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    front O2 sensor replacement advise 850 1995

    posted by  Larry P on  Sun Nov 28 04:22 CST 2004
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    last visit: Fri May 1 13:19 CST 2009
    [RELATED]

    Yes, that extra jumper harness acts as a barrier to oil getting to the sensor thru the wiring and making it fail. Factory fix.








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      front O2 sensor replacement advise 850 1995

      posted by  someone claiming to be Dalis on  Tue Nov 30 19:42 CST 2004 [RELATED]

      Yes Larry is right on that. The new Volvo O2 sensors (front or rear) come with extension harnesses. And it is recommended when you install one on the front, it is ideal to put a extension harness on the rear O2 sensor if your not changing it.







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