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A4 1.8t stalling

hellierlee Feb 24, 2012

  1. hellierlee

    hellierlee New Member

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    Ok got a 1.8t s line and it started losing power going up hills the other day and the next day it would start but stall while idling. If I put it in gear and try starting it it won't start but when in neutral I can keep it running by revving it although a little lumpy. I took the cat of and checked that as someone said it may be blocked. Also I changed all 4 coil packs today but with no difference. It is running quite rich and my spark plugs were black when I cleaned them earlier. Any help would be much appreciated or better still if any one knows a gd mechanic near Taunton in Somerset to come sort it?
     
  2. hellierlee

    hellierlee New Member

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    No ideas anyone?
     
  3. hades-

    hades- Well-Known Member VCDS Map User

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    you really need to get it scanned
    for fault codes
     
  4. hades-

    hades- Well-Known Member VCDS Map User

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    just an idea unplug the maf and try it
     
  5. hellierlee

    hellierlee New Member

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    Ok where's the maf? Sorry just new to trying to sort things myself
     
  6. hades-

    hades- Well-Known Member VCDS Map User

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    the maf is on the pipe comeing from the airbox
     
  7. hades-

    hades- Well-Known Member VCDS Map User

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  8. hellierlee

    hellierlee New Member

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    Ok yeah will try that ta. So say it still stalls when I unplug the maf? Any ideas from there?
     
  9. hellierlee

    hellierlee New Member

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    Ok unplugged the maf and the car runs. Still got a rattle when in idle and its there when I take my foot off the accelerator just alot faster. Sounds like a helicopter at that point. But when idle sounds like a tapping from behind the engine somewhere
     
  10. hades-

    hades- Well-Known Member VCDS Map User

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    noise could be anything from a heat shield to the DMFW
    does the engine shake at idle ?
    does it increase with the revs ?
    but just get a new MAF then that problem is solved
     

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