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International Automotive Technicians Network
Re: 99 lexus es300 p0171
Posted to Technical Discussion Forum on 3/7/2007

thanks guys. i am also leaning towards maf although the other techs all said a/f sensor. unfortunatly i dont have access to iatn at my part time job(nat'l chain)although i have campaigned for it. the vehicle left with a diagnostic for af sensor replacement. if... Login to read more.