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P0442 850 1997

posted by  PBH on  Mon Jul 28 11:55 CST 2008
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last visit: Mon Jan 2 20:34 CST 2012
[RELATED]

I think this means the valve in the evap system is not operating. On my mercedes I just sprayed WD40 in the evap valve and it has worked ever since, or you have an evap leak.

The fault will eventually clear itself if the repair is made, but not immediately. You need to clear the codes manually for that to happen.






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