Scanner Codes for de Oxygen sensors


Asked by LUISPUJOLS Oct 05, 2011 at 06:57 PM about the 2001 Lexus GS 300 Base

Question type: Maintenance & Repair

This codes: P0420 and P0430 are for two of the four oxygen sensors of my GS300
2001,  Can some one help me with the part number for those 2 codes.

I need to buy those two urgently.


1 Answer

Michael Griffin

the oxy sensor code discribes up stream or down stream and left and right what ever code is should tell you ei{ left up steam below treshold } that would be left side of the engine before the catalitic converter but part number wise the location of said o2S should tell you parts guy how to find it ie {year make model engine rt down steam o2s } that should bring the part #up

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