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  1. #1
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    2.0 tdi 170 smoke on idle

    Hi I've just bought a 56 170 s-line and I have noticed that if I leave it to idle for a while only when the engine is cold it smokes quite heavy, white/grey fuel smoke I was thinking possible dodgy injector. Has anyone else had this fault?

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  3. #2
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    Could just be the cold weather buddy - both ours are doing as well

  4. #3
    VagCabby's Avatar
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    As said proberly just condensation, all cars do it on cold mornings, warm air from the engine hitting the cold air outside. I wouldn't worry about it
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  5. #4
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    Mine does that to, but i just thought being the 170's and having the dpf fitted, its the DPF de clogging itself i always thought anyways.... not saying i'm correct lol

    also! i just had the injector mod done about 4 months ago, and still smokes when cold, (not all the time tho)

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    2.0 tdi 170 smoke on idle

    I'm going to try a injector harness tonight as audi said they are common I will let you know if its a success or not

  7. #6
    Purdy99's Avatar
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    i hope it works for you, would be interesting to see if maybe mines playing up aswell then,

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    2.0 tdi 170 smoke on idle

    Still does it, going to check the injector values tomorrow, I don't think it's dpf regenerating I've never known a car do it on idle or when engine is cold

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    2.0 tdi 170 smoke on idle

    Looking on google there's loads of them do it and no one has got to the bottom of it

  10. #9
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    ah, sorry to hear that didnt work, really? common fault then it seems, i hope someone finds out what it is!

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    Rick @ Unicorn Motor Dev.'s Avatar
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    You need to establish if it is condensation or smoke. With a DPF fitted it is unlikely to be smoke.

    Rick
    Unicorn Motor Developments. Bespoke Calibration and Remapping Services
    www.unicornmotordevelopments.com

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    2.0 tdi 170 smoke on idle

    It was smoke, made you eyes water it was that strong, put a blanking plate on the egr and its been spot on for 4 days now. no lumpy idle and better on fuel. Found the egr to be sticking open very slightly. Getting the car remapped anyway so going to get it mapped out

  13. #12
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    Neil, did you have any issues when the EGR delete was fitted - im thinking of doing this to mine but cant afford to get it mapped out straight away

  14. #13
    Rick @ Unicorn Motor Dev.'s Avatar
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    It will go into Limp after a while if it is just blanked.

    Rick
    Unicorn Motor Developments. Bespoke Calibration and Remapping Services
    www.unicornmotordevelopments.com

  15. #14
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    Quote Originally Posted by Rick @ Unicorn Motor Dev. View Post
    It will go into Limp after a while if it is just blanked.

    Rick
    So you need it mapped out - i was going to get the allard delete kit, i thought using this would only throw up the e/m light

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    2.0 tdi 170 smoke on idle

    Eml come on after a few days but drives fine, I'm going to get it mapped out

  17. #16
    Purdy99's Avatar
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    ah right, i've had mine mapped not, wooo, but am just about to put not a blanking plate, but a restricting plate on the EGR, would that bring up any faults even tho its been mapped? (and dpf delete)
    Camillia Well don't want to just settle for any average joe now!
    Purdy haha good point, but then again... apparently anything better doesn't exist
    Camillia No it doesn't... Hence why I'm complaining about it... Come on Purdy you can't be this stupid lol
    Purdy lol the hidden point i was saying, is surely it would be smart to stop chasing what doesnt exist.... then maybe... just maybe! it would shut all you girls up who moan about men...
    Camillia Touché

    Classic case of Girls Moaning about Boys...

  18. #17
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    mine a 170 07 does this sometimes not all the time a im a mechanic myself its really fuely the smell makes eyes sting and really lumpy /misfiring on idle the give it a blast it clears its defo fuel i thought egr any ideas id like to know.also had the injectors and harness done with audi in dec 2011....steve

  19. #18
    Rick @ Unicorn Motor Dev.'s Avatar
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    EGR valve, get it blanked and mapped out.

    Rick
    Unicorn Motor Developments. Bespoke Calibration and Remapping Services
    www.unicornmotordevelopments.com

 

 

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