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What a great forum, so much more info than the UK forums. Keep up the good work
Anyway, just had my CEL light come on on my 2002 GS300. Went to my local Lexus dealer and they came back with the the following:
Code P0141, Bank 1, Sensor 2 and they want about £310 ($500) to replace it
I am sure I will be able to replace it myself as it only screws in. But I need to know which sensor it is under the bonnet, I can see the two banks but which one is number 1? And which is sensor 2?