Lexus sat for close to a week waiting for upstream Air Fuel ratio sensors to come from Rock Auto. It initially came in with a problem only with Bank 1 upstream AF sensor, These things are so pricey at about $200 a pop, so I swapped the 2 AF ratio sensors side to side and the code P01130 became P01150 . Customer wanted both sides done and ordered online from Rock Auto and saved himself $60 a piece not including tax. In the mean time the weather turned bitterly cold. I put the 2 new Denso air fuel ratio sensors in and drive it and now the Bank 2 AF code P01150 and P0136 for downstream o2 is pending and 0v with no activity is seen with the down stream o2 sensor out of the blue . Inspection of the downstream o2 shows it is going to be a costly headache to remedy because I need to fill my torch tanks . Another Rx $300 probably
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