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DTC P0139 HO2S Slow Response Bank 1 Sensor 2

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In front of the catalytic converter.

Thanks Jim!

I am definetly going to leave this issue alone... Drove the car a little this evening and it was codeless.. yet another fit from my PCM i believe.. I do however want to figure out why the car stumbles when it is cold at take off everyday then clears up after 30 seconds... I am thinking faulty EGR valve... No codes of course.. Any idea's? This has done this for years before any issues with anything else..

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