Chris NottVolks Autos
Results 1 to 14 of 14
  1. #1
    A4 nut's Avatar
    2nd Gear

    Status
    Offline
    Join Date
    Nov 2009
    Location
    wolverhampton
    Posts
    352

    Vibration/wobble on tickover

    Hi my father in laws 2003 a4 avant 1.9 tdi has devloped a kind of wobble on tickover its not miss firing could it be an engine mount or gearbox mount gone any ideas?



    Hope the people that took me DIE

  2. # ADS
    ADS
    Join Date
    Always
    Location
    Global
    Posts
    Many
     
  3. #2
    simon.m's Avatar
    6th Gear

    Status
    Offline
    Join Date
    Oct 2009
    Posts
    2,746
    i had this on mine some one on here said to clean the injector harnes witch i did and has been good so far but i think ill need a new one soon any way could be that mate with mine it was a lumpy kind of thing very strange the hole car was well just lumpy like the engine was bobing up and down

  4. #3
    Rigla's Avatar
    S Line

    Status
    Offline
    Join Date
    Aug 2010
    Location
    Lichfield, Staffordshire
    Posts
    63
    Mine is doing this aswell, it only does it when its warm and its worse if the car is on a incline and decline. I'm geting it diagnosed on Thursday but i'm 80% sure its the Injector wiring loom

    2007 Sportback A3 2.0TDI S-Line.
    S Tronic + F1 paddles | Bluetooth | Rear Parking Sensors | FBSW | RSNE | BOSE | Auto lights/wipers | Full Leather
    MODS : S3 Rear Bumper | 2011 Front End | 2011 Xeonons + DRL | Black Grill + Rings | 18" RS6 Alloys
    PLANS: Coilovers | Remap + DPF | Porsche Calipers | New wheels


  5. #4
    simon.m's Avatar
    6th Gear

    Status
    Offline
    Join Date
    Oct 2009
    Posts
    2,746
    i get it some times after a good run

  6. #5
    Neutral

    Status
    Offline
    Join Date
    Mar 2010
    Location
    leeds/bradford
    Posts
    57
    I get that too

  7. #6
    SerialAudiOffender

    Status
    Offline
    Join Date
    Aug 2010
    Location
    Scotland
    Posts
    100
    I thought it was just a characteristic of the 1.9 PD 130 engine? I've had this on my last two Seat Ibiza PD130 cars.

  8. #7
    simon.m's Avatar
    6th Gear

    Status
    Offline
    Join Date
    Oct 2009
    Posts
    2,746
    oh right well im sure it should not be there as its rather annoying and dose not do it all the time but would make seens as it dose not show up on a scan

  9. #8
    Reverse Gear

    Status
    Offline
    Join Date
    Aug 2010
    Posts
    12
    Hi all,

    Mine does this as well. whole front of the car jumps about when warm. Been looking and had it on vag com and suspect i need to the the hammer mode the reset the injector quantity as mine is out of parameters. Looks easy to do, have adjusted but cant get it close enough. See this link - TDIClub Forums - View Single Post - injection pump repair, fuel quantity

    Ian

  10. #9
    simon.m's Avatar
    6th Gear

    Status
    Offline
    Join Date
    Oct 2009
    Posts
    2,746
    that is way over my head ;-) and have to say i dont no how it would adjust its self to be out if they have not been changed buy some one but like i say thats way over my head so i may be wrong

  11. #10
    deanski's Avatar
    wax on, wax off

    Status
    Offline
    Join Date
    May 2010
    Location
    Lancashire
    Posts
    374
    mine also does this. local garage reckoned its the hydraulic engine mount but i'll look into the injector thing. anyone got a link as to how to clean it and are they expensive to replace?

    thanks

  12. #11
    simon.m's Avatar
    6th Gear

    Status
    Offline
    Join Date
    Oct 2009
    Posts
    2,746
    the harnes you just take the rocker cover off and you can see the wiers give them a clean and pop them back on i did it to mine help but think if it starts up again ill just buy a new one im told under 50 pounds

  13. #12
    Garfie's Avatar
    1st Gear

    Status
    Offline
    Join Date
    Jul 2009
    Location
    Ipswich, Suffolk
    Posts
    179
    Mine occasionally suffered from this too. I just adjusted the tickover speed slightly with vag-com to a speed where it idles smoothly.

    Current Car:

    A3 S-Line TDI 140bhp Sportback in Misano Red Pearl with Audi Open Sky System, Chrome Roof Rails, Full Leather, Front Armrest with Audi Phone Prep, MFSW, Cruise Control, Auto Wipers, Auto Lights, Auto Dim Mirror, Rear Parking Sensors, Bose Stereo, Privacy Glass, Ambient & Footwell Lighting and Puddle Lights.

    Pic soon

    Gone but not forgotten:

    Audi A4 TDI Sport Avant in Denim Blue
    VW Golf Mk4 GTTDI
    Vauxhall Calibra 2.0 16V 150bhp Red Top
    Vauxhall NovaVAN 1.5TD

  14. #13
    simon.m's Avatar
    6th Gear

    Status
    Offline
    Join Date
    Oct 2009
    Posts
    2,746
    good idea as if i blip the revs a weeeeee bit it gose

  15. #14
    evilscotsman's Avatar
    Space Cowboy

    Status
    Offline
    Join Date
    May 2008
    Location
    Fife, Scotland
    Posts
    1,345
    mine is exactly the same, and a blip to 1k rpms smooths it out, but mines a Bosch VP37 distro pump unit, TDi 110.....it is in my case, I think, a small fuel leak from one of my injector pipes. Holding 1k instead of 850 idle makes the fuel pressure rise, and picks up the dragging cylinder thats getting the low pressure. Idle fuel is the equivalent of a tiny drip of diesel, around 1cc or less, so if a drip falls, thats the drip that would have got pushed thru the injector on that line.

    On a common rail unit it could be a faulty injector that isnt opening with the tiny idle pulse it receives, or the rail pressure may be near the low limit. Check the difference in fuel pressure on vag com between idle and 1k rpm and see if its within spec. Should be close but if way differnt then either the pump is worn or the fuel pressure sensor may be duff.

    And check for fuel leaks, even tiny ones. Also your IAT may be giving the wrong idle air temps to the ecu, but you would be able to pull a fault code for this if its open circuit or shorted, wrong values however will cause wrong fuelling, and may contribute with no code to see.
    Last edited by evilscotsman; 3rd September 2010 at 08:40.
    B4 TDI - old skool project / daily driver...if it ain't broke, it's probably an Audi...


 

 

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •  
Single Sign On provided by vBSSO

Garage Plus, Vendor Tools vBulletin Plugins by Drive Thru Online, Inc.

Content Relevant URLs by vBSEO