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Thread: Audi S5 with fault codes P0101, P0171 and P0174.

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  1. Audi S5 with fault codes P0101, P0171 and P0174. 
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    Can anyone help with this issue on a 2009 Audi S5. I have fault codes for P0101, P0171 (lean bank 1) and P0174 (lean bank 2) which keep coming back after each attempted fix. Mass Air sensor has been replaced, smoke tested for air leaks, None. All sensors seem to be OK when scanned at a specialist garage and today I had a full walnut carbon clean of the inlet manifold and valves. Car holds back when cold and codes come on within 30 miles of resetting. Any ideas welcomed before I chuck another pile of cash at it.

    Rob

     
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  2. Re: Audi S5 with fault codes P0101, P0171 and P0174. 
    #2
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    Has anyone read what the injectors are delivering?
    Alan.

    A6 Avant (C7) 3.0 TFSI Quattro S-Tronic
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  3. Re: Audi S5 with fault codes P0101, P0171 and P0174. 
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    This is the 4.2 V8 version?
    Anthropogenic climate change, the biggest con inflicted on mankind since religion...

    Slava Ukraini
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  4. Re: Audi S5 with fault codes P0101, P0171 and P0174. 
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    Yes 4.2 V8
     
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