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Engine Idling / tick over Problem

Discussion in 'A6/S6/Allroad forum (C6 Chassis)' started by taff68, Mar 26, 2014.

  1. taff68
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    taff68 New Member

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    [Mar 26, 2014]
    Hi,
    Every now and again whilst sitting in traffic, the engine in my A6 2L TDI, 2010 s-line 170bhp, seems to jump between the low idle setting, approx.900rpm and then up to 1000 rpm and then settle down again back to 900rpm? Only happens occasionally?

    Is it just a case of asking garage to adjust tick over setting or something more serious?


    Thanks,

    Taff68
    #1
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  3. saxonblue
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    saxonblue Member

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    [Mar 26, 2014]
    mine has done the very same thing, but then it seems ok for weeks on end,
    I ran my fault Code reader through it and it came up with a map sensor problem ( map = manifold air pressure ...I think)
    could it be the same on yours?
    :shrug:
    #2
  4. B5NUT
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    B5NUT Well-Known Member VCDS Map User

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    [Mar 26, 2014]
    Had a similar on one of my old A4's turned out to be the MAF, best get it scanned to see if a fault code appears. One thing to note there was no fault code with my faulty MAF.
    #3
  5. saxonblue
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    saxonblue Member

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    [Mar 26, 2014]
    worth a scan anyway, as you never know, I was told mine could be the MAF. but then I was told no it cant ..coz its not got 1:shrug:
    #4
  6. a6_chris
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    a6_chris Well-Known Member

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    [Mar 26, 2014]
    MAF or DPF regen happening if it doesn't do it all the time.

    Get it scanned.
    #5

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