2000TexasLexus Posted August 28, 2008 Share Posted August 28, 2008 Hey all, can someone please help with a oxygen sensor question? I have a 2000 gs300 and it has a check engine light on with codes PO141 and PO161, bank 1 sensor 2 and bank 2 sensor 2 is I'm guessing "bad". Can anyone give me more info about this problem? And where are these things located at? Any help will be greatly appreciated! THANKS A BUNCH! Quote Link to comment Share on other sites More sharing options...
kixnfx Posted August 29, 2008 Share Posted August 29, 2008 hey there, i have the same problem and the same questions. could i go to toyota or should it be a part i should get from lexus? and is the secondary o2 before or after the catalyc converter? someon please get back at us! Quote Link to comment Share on other sites More sharing options...
2000TexasLexus Posted September 1, 2008 Author Share Posted September 1, 2008 hey there, i have the same problem and the same questions. could i go to toyota or should it be a part i should get from lexus? and is the secondary o2 before or after the catalyc converter? someon please get back at us! Hey I think I figured it out, http://www.clublexus.com/forums/showthread...ighlight=sensor Quote Link to comment Share on other sites More sharing options...
2000TexasLexus Posted September 2, 2008 Author Share Posted September 2, 2008 hey there, i have the same problem and the same questions. could i go to toyota or should it be a part i should get from lexus? and is the secondary o2 before or after the catalyc converter? someon please get back at us! Hey I think I figured it out, http://www.clublexus.com/forums/showthread...ighlight=sensor Keep us updated on your progress with the problem Quote Link to comment Share on other sites More sharing options...
Chuck Li Posted September 4, 2008 Share Posted September 4, 2008 got my bank1 sensor 2(the one after the catalytic converter) replaced by a local mechanic expert. i paid $120, the part was like $60-80. should definitely get it fixed asap. Quote Link to comment Share on other sites More sharing options...
2000TexasLexus Posted September 18, 2008 Author Share Posted September 18, 2008 got my bank1 sensor 2(the one after the catalytic converter) replaced by a local mechanic expert. i paid $120, the part was like $60-80.should definitely get it fixed asap. so what happens if I dont? Quote Link to comment Share on other sites More sharing options...
Chuck Li Posted September 21, 2008 Share Posted September 21, 2008 your mpg will go up down if you don't...because from what i've been told, that sensor basically calculates how much gas you need to use while driving. I might be wrong, but better to get anything bad replaced. Quote Link to comment Share on other sites More sharing options...
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