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Thread: A3 Emissions control system warning light

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  1. A3 Emissions control system warning light 
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    I have an A3 1.6 MPI 2006MY, which appears to have an intermittent fault with the upstream Oxygen sensor.
    A diagnostic scan reports the following:-
    "Linear oxygen sensor B1 S1 pump current trim circuit open P2626"
    "Sporadic 008 implausable signal"
    When I clear the fault code the Emission warning light goes off, but I noticed that the fault code returns but no warning light comes back on.
    I assume I need a new sensor, but as these are expensive-around £150, and it is a pig to access, and is very tight, are the emissions affected,as its MOT is due shortly?
    The car drives perfectly, and fuel consumption is excellent.
     
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  2. Re: A3 Emissions control system warning light 
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    If you don’t replace the sensor the cat could be damaged.
    Anthropogenic climate change, the biggest con inflicted on mankind since religion...

    Slava Ukraini
    !


     
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  3. Re: A3 Emissions control system warning light 
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    The car has just passed the MOT. It is unlkely the fault will affect the CAT, although I intend to replace the suspect sensor anyway.
     
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