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P0422 and P0128 codes V70-XC70 2001

i am getting the above codes in my 2001 XC70 (with about 120,000 miles on it). i first received a CEL about a month ago, for a couple of days, and the CEL turned off by itself. i went to an autozone and they printed out the codes. i would like to do some checking before sending the car out, but my problem is i do not know where the vacuum hoses are. does anybody have a pic of what my engine looks like and where these hoses are?? also, what else can i check before i have to purchase a new cat.

thanks






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New P0422 and P0128 codes [V70-XC70][2001]
posted by  rdonofrio  on Tue Feb 24 03:39 CST 2009 >


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