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Rough idle cure :)???

Discussion in 'A3/S3/Sportback (8P Chassis)' started by martinivw, Jan 13, 2012.

  1. martinivw
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    martinivw :)

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    Yep - I did a write up about this some 6-9 months ago !

    I'll see if I can find it !

    EDIT - here it is :-

    This is for version 908 :-
    Ignition on - engine off

    Select Engine controller 01
    Select Measuring blocks 08
    Select 'Go' in Group 1
    Start Engine ( you may be able to start engine earlier but I don't )
    Hit 'Turbo' button at top of page
    Select 'Done'
    Select Adaptation - 10
    Change channel to 06 and hit 'Read'

    First figure shows actual rpm
    Stored value shows rpm as originally set ( mine is 840 )
    New value will show same figure

    Use up/down buttons to change revs and when happy press 'Test' to see if ok

    If ok then hit 'Save' and close otherwise fiddle around with revs and test until happy.

    "If like me you are bothered with rough idle/tickover use Mike Fosters guide(above) to turn revs DOWN,
    yes that's right turn them down for a while I have been turning mine up (thanks Ewan)with little improvement, to my surprise I have just
    turned rpm down to 800 rpm with INSTANT improvement ,
    It has only been 10 mins so I guess time will tell"
    #1
  2. AidenUK
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    AidenUK Well-Known Member

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    Did doing this cure it permanently?
    #2
  3. martinivw
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    martinivw :)

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    done it a month ago and although it hasnt taken it away completely i can hardly notice it now :):):)
    #3
  4. AidenUK
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    AidenUK Well-Known Member

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    Did the engine miss or just judder? You can hear mine miss when it's doing the juddering thing!

    I'm actually desperado to try and get this fixed!
    #4
  5. _scotty_
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    _scotty_ New Member

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    i have the same sort of problem its fine when driving but when am sat at the lights it misses now an then.
    #5
  6. AidenUK
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    AidenUK Well-Known Member

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    Mike Foster lowered the idle on mine down to 800 RPM and it's not spluttered, juddered or missed ones today since. You watch i'll of jinxed it and it will start playing up tomorrow!
    #6
  7. si20brady
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    si20brady New Member

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    Hi Guys,

    I just got an 54 plate A3 with a rough idle when stood at the lights. It disappears when the air con is on high and the load on engine rises.

    Anyone near Leeds with the laptop and software mentioned above that would be able to help in return for a few quid?

    Thanks

    Si
    #7

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