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po440 850

posted by  Blk87 on  Sat Oct 18 10:30 CST 2008
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last visit: Mon May 27 14:12 CST 2013
[RELATED]

Is this a EVAP problem or a o2 sensor problem. Check engine light came on and set a code 95 850 thanks for your help...........








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    po440 850

    posted by  KlausC on  Mon Oct 20 07:23 CST 2008
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    last visit: Fri Oct 24 10:15 CST 2014
    [RELATED]

    P0440 = EVAP Emission Control System Malfunction

    Probably just a check valve from the charcoal cannister.

    If you would have used your onboard diagnostic checker, it would have been more specific. Learn how to use the 2 boxes and you can fix anything.

    Klaus
    --
    Just driving a 1998 V70R :)







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