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Still coping with P0442 V70-XC70 1999

My CEL comes on with the same P0442 error code typically after a long drive. I then erase the code with my laptop using DYNOSCAN. It has been intermittant over the past three years with no noticeable increase in frequency (whew). Last week i erased it 20 miles before my NYS emissions test, and it passed inspection.
I just copied the advice given to you so that i might find the erratic small vacuum leak.
Good luck.






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New 1 Front O2 sensor replaced and CEL light is gone. [V70-XC70][1999]
posted by  pgao  on Sun Oct 25 08:10 CST 2009 >


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