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Thread: Oxygen Sensor Problem

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    PakWheeler Follow
    engineer.shahidch's Avatar
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    Default Oxygen Sensor Problem

    Dear Friends. I have vitz 2010, 1000 Cc. I m its first user. I have driven it 62K Km. Last mont, it got engine check light. After scanning, it was "Catalytic System Efficiency below threshold (p0420)" error. Mechanic advised me to clean catalytic converter. I got it clean. After refitting catalytic converter, I just drove 2 km and again check light was on. Again after scanning, it was a new trouble code. It was "A/F Sensor response slow " error. I cleaned the sensor twice but error is still there.

    Anyone guide me how to get rid of this problem permanently?


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    rajaatta's Avatar
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    If the dtc is of oxygen sensor slow response then its time to replace it with a brand new one. Get it done and your problem would be resolved.

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    Dear Raja. Thank u. Can I replace it with the used sensor. If i buy the new one, which brand is compatible with ECM of vitz? Can it will b useful to experiment to replace it with other car's sensor to verify the problem? Second thing how it is possible that sensor is malfunctioning do earlier ?

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