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Help with 2.0 fsi

Discussion in 'A4/A4 cabriolet/S4 forum(B6 chassis)' started by S2YOB, Nov 19, 2011.

  1. S2YOB
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    S2YOB New Member

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    [Nov 19, 2011]
    Hi,
    I am having really trouble with my wife's A4 2.0 fsi avant.
    The car has really rough idle and fuel consumption is poor, the car has had new plugs and coils and has also had new ox sensor, the car runs fine but idles like it is going to stall

    Nick
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  3. beachbuggy
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    beachbuggy Well-Known Member

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    [Nov 19, 2011]
    Air leak or faulty maf are the likely problems. I know everyone likes to say get it scan on vagcom but in this case I think it's a good idea. I would tend to go with an air leak though.
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  4. Digger1
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    Digger1 Member

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    [Nov 19, 2011]
    would agree with b-buggy, I've got the same engine and a while back had the same symptons,, turned out to be a breather hose that goes from rocker cover into the plastic inlet manifold to the right of the engine .
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  5. S2YOB
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    S2YOB New Member

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    [Nov 19, 2011]
    Thanks for the reply, I have read the codes and there are 5!!!!!! Struggling to find real info on them though
    Funny enough I disconnected the maf earlier and the idle smoothed out, but I am also getting a rich smell

    Nick
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  6. S2YOB
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    S2YOB New Member

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    [Nov 19, 2011]
    Mmmmm I may have to check them tomorrow

    Nick
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  7. beachbuggy
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    beachbuggy Well-Known Member

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    [Nov 19, 2011]
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  8. S2YOB
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    S2YOB New Member

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    [Nov 19, 2011]
    I had the codes read on vag com and they are as listed:

    17414 - torque diff cylinder 3 p1006 - 001

    16698 - misfire detected single cylinder p0314 - 001

    17947 - clutch pedal switch p1539 - 004

    17560 - long term fuel trim addivtive air p1152 - 001

    16684 - random/multiple cyclinder misfire p0300 - 008

    16688 - cylinder 4 misfire p0304 - 008


    Nick
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