rev joe Posted July 19, 2004 Share Posted July 19, 2004 Is changing the oxygen sensor(s) a difficult job? Is there one or two? Where are they located? Aproximate cost for Lexus part? Quote Link to comment Share on other sites More sharing options...
chips229 Posted July 20, 2004 Share Posted July 20, 2004 I dont like to see posts go un answered :) Im not to sure where the sensor is located... The only sensors i know of are the airflow sensor in the air filter inlet box,and the lamba sensors before and after the cats on the exhaust. Hope someone else can help you Quote Link to comment Share on other sites More sharing options...
SRK Posted July 20, 2004 Share Posted July 20, 2004 There are four of them, two pre-cat, and two post-cat. An O2 sensor socket is the best tool to remove them, and even then they can be a bit sticky to get out. They cost several hundred dollars each here in Canada, and as each one has a trouble code attached specifically to it. I think the first question is are you replacing all four - has some shop advised this? Quote Link to comment Share on other sites More sharing options...
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