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  1. Egr excessive flow 
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    hi

    i have a Audi A8 4.2 TDI. 2014.

    i have a EGR excessive flow fault on bank 2. So i did some live data on vcds and it is showing both air flows meters the same on tickover but as soon as you rev up,bank 2 is drawing 300mg less air than bank 1.

    so i took it to a garage who then connected it to ODIS and the technician told me he is 95% sure it is the EGR cooler. so if bank 2 air flow meter is drawing in about 300mg less air in than bank 1, it might mean the EGR cooler is blocked but wouldn't it mean that bank 2 was getting insufficient flow,not excessive flow.

    any help would be appreciated.

    THANKS
     
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  2. Re: Egr excessive flow 
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    It is likely the entire inlet system is clogged solid upstream of each valve, a disgusting job to do.
    "I disapprove of what you say, but I will defend to the death your right to say it"

    Evelyn Beatrice Hall (1868-1956)
     
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  3. Re: Egr excessive flow 
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    thanks Crasher for your reply..

    could you just be a bit more specific so i can get it right in my head.

    cheers
     
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  4. Re: Egr excessive flow 
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    i tell you what the technician did say.

    performed full extensive ODIS diagnostic test plan.

    results shows EGR COOLER mechanism arm partially seized which restricts the arm lever from fully opening/closing.

    is there a arm in a EGR cooler that opens and closes.
     
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  5. Re: Egr excessive flow 
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    Does this car have a raised and extended glass sided roof line designed to accommodate a large wooden casket?
    "I disapprove of what you say, but I will defend to the death your right to say it"

    Evelyn Beatrice Hall (1868-1956)
     
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  6. Re: Egr excessive flow 
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    .

    i wish it did,it would be the first AUDI A8 hearse i have seen. 0V14 YRM
     
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  7. Re: Egr excessive flow 
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    "I disapprove of what you say, but I will defend to the death your right to say it"

    Evelyn Beatrice Hall (1868-1956)
     
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