o2 Sensor

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22 February, 201511 yr

Hi.hope you can help, what's the best way to check if my O2 sensor is faulty. I have an Octavia 2002 Petrol, 201,000 miles on the clock. It is miss firing at times, on other occasions it is reluctant to achieve 70mh.

22 February, 201511 yr

fault codes,then see and analise the squarewave on VCDS and response of it

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