Volks AutosSky Insurance
Results 1 to 6 of 6
  1. #1
    Neutral

    Status
    Offline
    Join Date
    Jun 2013
    Posts
    54

    Egr or turbo vacuum solenoid problem.

    Hi. I recently did an egr delete kit on my 1.9 tdi 130 . After realising it was more trouble than its worth with pipes coming off and warning lights coming on. I decided to take it off.
    just before this though I had major boost problems, with constantly having to have the code reader plugged in while driving to clear the fault codes to get it out of limp mode.
    then when it was it filled the road behind me with black smoke.
    when I cleaned and put back the egr valve, the black flap actuator on the side kept closing the egr and stalling the car immediately.
    So I had a couple of the hoses swapped round, brake servo vacuum and solenoid pipe, as they were identical thinking I'd mixed them up. Now it starts and runs, but if I leave the vacuum pipe attached to the black actuator on the side of the egr, eventually it stalls the car.
    but if I leave it off, when the car is warm and I go to restart it, it shakes like a tractor!
    I thinking by blanking the vacuum hoses off I've broken one of the solenoids. But which one, as its a maze of t connectors.
    any ideas people?
    Cheers

  2. # ADS
    ADS
    Join Date
    Always
    Posts
    Many
     
  3. #2
    pauldazzle's Avatar
    3rd Gear

    Status
    Offline
    Join Date
    Nov 2009
    Location
    Cardiff
    Posts
    558
    Sounds to me like you have a vacuum pipe in the wrong place. It's the anti shudder valve on the side of the EGR which should be left on even with EGR delete. The ASV should only get vacuum on turning the engine off as it closes the EGR butterfly to stop airflow. The purpose of the ASV is to stop the engine shuddering when turning off, & to prevent against turbo runaway.
    There are 2 vacuum solenoids down in the maze of pipes . Easiest way to get good access to that area is to remove the large plastic air feed to the air filter coming from the front next to the bonnet latch.
    A4 Avant B6 1.9 TDI 130 Sport (6) Moro Pearl Blue, GMBH S Line Kit, Decat pipe, 165bhp remap, EGR delete, Dunlop SP Max, Full Leather, Cruise Control, Full DIS, Bose, Audi phone prep, Cooled Glove Box, Rear privacy glass, Rear parking assist.
    2003 Seat Ibiza 1.2 TSI FR in Lima green.

  4. #3
    pauldazzle's Avatar
    3rd Gear

    Status
    Offline
    Join Date
    Nov 2009
    Location
    Cardiff
    Posts
    558
    Forgot to say the ASV actuator arm should be fully extended (EGR butterfly flap open) when the engine is running.
    A4 Avant B6 1.9 TDI 130 Sport (6) Moro Pearl Blue, GMBH S Line Kit, Decat pipe, 165bhp remap, EGR delete, Dunlop SP Max, Full Leather, Cruise Control, Full DIS, Bose, Audi phone prep, Cooled Glove Box, Rear privacy glass, Rear parking assist.
    2003 Seat Ibiza 1.2 TSI FR in Lima green.

  5. #4
    Neutral

    Status
    Offline
    Join Date
    Jun 2013
    Posts
    54
    Quote Originally Posted by pauldazzle View Post
    Forgot to say the ASV actuator arm should be fully extended (EGR butterfly flap open) when the engine is running.
    Cheers for that. There are two vacuum pipes iidentical . One to the brake servo, one to the asv. When it's swapped round the engine won't run at all, shutting the asv off soon as the engine starts, stalling the engine.
    Whereas the other way round after a bit, while driving the car will stall ,looking at the egr, the asv is closed?

    Im wondering if one of the solenoid has gone, and which one would it likely to be?

  6. #5
    pauldazzle's Avatar
    3rd Gear

    Status
    Offline
    Join Date
    Nov 2009
    Location
    Cardiff
    Posts
    558
    In the engine module VCDS can do an instrument test which cycles the valves.
    With the bonnet open & reaching through the drivers window you can turn the engine off & watch the ASV operate. When you turn the engine off the ASV should close the valve & then release after a second or 2. (Vacuum to the ASV is only momentary on shut down).
    A4 Avant B6 1.9 TDI 130 Sport (6) Moro Pearl Blue, GMBH S Line Kit, Decat pipe, 165bhp remap, EGR delete, Dunlop SP Max, Full Leather, Cruise Control, Full DIS, Bose, Audi phone prep, Cooled Glove Box, Rear privacy glass, Rear parking assist.
    2003 Seat Ibiza 1.2 TSI FR in Lima green.

  7. #6
    Audi Doodah's Avatar
    2nd Gear

    Status
    Offline
    Join Date
    Sep 2012
    Location
    Swindon
    Posts
    371
    The ASV mechanics are plastic and can break easily...worth a check
    A4 Avant 1.9 TDi Sport GmbH

 

 

Similar Threads

  1. Turbo Back Pressure problem?
    By Jonay in forum A3/S3/Sportback (8P Chassis)
    Replies: 7
    Last Post: 5th February 2011, 16:52
  2. S4 B5 Avant Tailgate Solenoid problems????
    By s4best4 in forum A4/S4 forum(B5 Chassis)
    Replies: 0
    Last Post: 25th January 2010, 19:01
  3. EGR and turbo help please
    By Marko in forum A4/A4 cabriolet/S4 forum(B6 chassis)
    Replies: 2
    Last Post: 1st May 2008, 15:53
  4. Vacuum caused turbo & brake servo problems
    By welshdragon in forum A4/S4 forum(B5 Chassis)
    Replies: 2
    Last Post: 20th November 2007, 18:22
  5. 89 200 turbo quattro (charging problem)
    By HOHN in forum General Technical / How To
    Replies: 0
    Last Post: 22nd June 2007, 05:42

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