Does anymore knows how to bypass peugeot 508 downstream o2 sensor

Discussion in 'Peugeot 508' started by Dylan Song, Oct 7, 2024.

  1. Dylan Song

    Dylan Song

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    My peugeot 508.was using 1.6thp 156 hp engine as known as Prince engine
    Same as the mini cooper s engine
    So my main issues was previous my catalytic converter were broken so that i
    Decided to replaced a new turbo catless downpipe after replaced, my car runs smooth as usually but sometimes not lucky enough cause it will trip a code po420. Does anyone know how to bypass the downstream o2 sensor
    Please help me out
    Appreciate you guys tq
     
    Dylan Song, Oct 7, 2024
    #1
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