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PO 141 is a oxygen sensor that is malfunctioning on Bank 1 exhaust system , that would be the driver side pipe. There are two on this side. One in front of the catylist and one right after it . Code 141 is for the on after the catylist. Usually this would mean a simple replacement of the sensor which could run from 125 to 200 dollars. Some times this code could be caused by a broken wire which can be hard to find .
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