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EGR Blanking cap

Discussion in 'A4/A4 cabriolet/S4 forum(B6 chassis)' started by james0808, Sep 28, 2006.

  1. james0808
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    james0808 Active Member

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    [Sep 28, 2006]
    Ive been cleaning my inlet manifold and and EGR valve today.They was a right mess.This is what they was like.The pics are not that good its the crappy camera.
    EGR valve.
    [​IMG]
    Inlet manifold.
    [​IMG]
    This is the crud i scraped out.
    [​IMG]
    and after a bit of cleaning i was left with these.
    [​IMG]
    [​IMG]
    Before i put it back on i want to disconnect thr EGR so it stays clean but will i get any running problems if i do?
    #1
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  3. james0808
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    james0808 Active Member

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    [Sep 28, 2006]
    I was thinking something like this.
    [​IMG]
    #2
  4. samuelt
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    samuelt Member

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    [Sep 28, 2006]
    James,

    Is that all out of your TDI 130??? If so what milage have you done? And how easy is it to do the job, as i may have a look at mine!!

    What differnece does the Blanking plate do?
    #3
  5. james0808
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    james0808 Active Member

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    [Sep 28, 2006]
    Yes it was.There was even more than that when i had finished. Its really easy to do,just takes a couple of hours to remove and clean.I used contact cleaner and wet and dry once i scraped all that **** out.Ive got nearly 80k.The blanking cap stops the exhaust going back into the inlet,not good as its full of soot and hot.
    #4
  6. james0808
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    james0808 Active Member

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    [Sep 30, 2006]
    Looks like mine wasnt that dirty after all,heres one i found on someone elses car.
    [​IMG]
    I better get that egr blocked.
    #5
  7. james0808
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    james0808 Active Member

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    [Sep 30, 2006]
    After reading a few threads about getting a CEL if i block the EGR i decided to unplug the pipe to the EGR Valve and try it.It drives lovely and no CEL,also got rid of an irritating whistle noise i had between 1000-2000 rpm.Im going to make my own blocking plate out of some steel to keep my inlet nice and clean.:arco:
    #6
  8. Caesium
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    Caesium My BM is fixed!

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    [Nov 27, 2006]
    Are there any purpose made caps for this purpose? or am I going to have to get out the file and make one up...
    #7
  9. Caesium
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    Caesium My BM is fixed!

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    [Nov 27, 2006]
    Also James, what gaskets did you need to buy to replace the ones when you removed the throttle flap?
    #8
  10. james0808
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    james0808 Active Member

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    [Nov 27, 2006]
    There are caps but they are about £50,I just drew round the gasket on some steel and got the grinder to work making two blanking caps for free.I didn't replace any gaskets just put it back together with the old ones and no problems at all.
    #9
  11. Caesium
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    Caesium My BM is fixed!

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    [Nov 27, 2006]
    I think i'll be filing my way to happiness then, back to my old college days!

    God even knows where i'll source some 4-5mm steel from!
    #10
  12. james0808
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    james0808 Active Member

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    [Nov 27, 2006]
    I got mine out of my dads shed,any time i need something it's in there.You can use some thinner stuff for the inlet.
    #11
  13. vw754
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    vw754 vorsprung Durch Technik

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    [Dec 10, 2006]
    Will the egr come off by undoing 3 screws or is there more?
    also does it drive better or anything once cleaned?
    Finally the most important is there any seals that need to be replaced?
    #12
  14. james0808
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    james0808 Active Member

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    [Dec 11, 2006]
    It will but your better off taking the inlet manifold off so you can clean that aswell.
    #13
  15. K7ERG
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    K7ERG Member

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    [Dec 11, 2006]
    Looking at doing this to my Audi as its a high miler. A mate done this to his 2.5 and it made a big difference. Less smoke as well which always helps.

    Craig
    #14
  16. Diesel Dan
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    Diesel Dan New Member

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    [Dec 11, 2006]
    Hi,
    I blanked of the EGR valve feed pipe from the exhaust pipe, by putting in a copper blanking plate.
    The engine fault code light come on after driving for 100 yards !!!
    I checked the fault code and it came up with an error about the EGR outwith normal parameters.
    I have had to remove the blanking plate and clear the fault code.
    Anyone know how to stop this fault from re-occuring ?

    2004 1.9 TDI PD 130, AVF engine

    Thanks
    #15
  17. james0808
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    james0808 Active Member

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    [Dec 11, 2006]
    Sorry mate can't help with that.Mine is still running perfect.
    #16
  18. confusionhunter
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    confusionhunter Member

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    [Dec 16, 2006]
    just cleaned up my EGR and Inlet manifold.... my word what a load of crud!!! Im gonna try that VAGcom mod in the other post as Ive got a non PD 98 effort as I didnt have time to make up the EGR blanking plate.
    Just out of curiosity, if you unplugged the vacuum pipe to the EGR valve, would that make it open more or less???
    You would think less but then under boost the inlet and exhuast manifolds will be pressureised..... hmmmm....
    #17
  19. james0808
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    james0808 Active Member

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    [Dec 16, 2006]
    Alot of people unplug the pipe,it will stop it working.
    #18
  20. confusionhunter
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    confusionhunter Member

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    [Dec 16, 2006]
    why would anyone go to the hassle of making a blanking plate if you can simply unplug and block up the vacuum pipe?
    Here was my Mess BTW..... 98 A3 AHF with 105k...
    [​IMG]
    [​IMG]
    #19
  21. james0808
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    james0808 Active Member

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    [Dec 16, 2006]
    I did mine bacause the bits was already off the car,so it was easy.
    #20
  22. Rev-head
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    Rev-head Active Member

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    [Dec 16, 2006]
    Well i am going to be doing this in my Jan holidays did you just steep the manifold in Petrol to losen off carbon
    #21
  23. confusionhunter
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    confusionhunter Member

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    [Dec 16, 2006]
    yeah there is a suprising amount of room back there! Well now Ive put it back together I'll do some mileage and see if there is any MPG improvement from the clean up and the VAGcom tweak in the other EGR post... then I'll try disconnecting the EGR vacuum pipe and see what happens.......
    I needed to do it quickly so used some Jizer and brush but that doesnt work too well so I scraped most of it off with a flat bladed screwdriver and then use carb cleaner..... but there are bits in the inlet manifold that you just cant get to....
    #22
  24. Rev-head
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    Rev-head Active Member

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    [Dec 16, 2006]
    Vag.com tweak in EGR Post?
    #23
  25. james0808
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    james0808 Active Member

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    [Dec 16, 2006]
    A small chisel taped to a long spring will reach the awkward areas in the manifold.
    #24
  26. vw754
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    vw754 vorsprung Durch Technik

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    [Dec 17, 2006]
    how do you clean inlet,is this got be sripped down?
    #25
  27. confusionhunter
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    confusionhunter Member

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    [Dec 17, 2006]
    yes, onlt six bolts at the rear of the engine but you need to take boost pipes off and the EGR valve off etc etc
    .

    Here is the link toi the EGR VAGCOM mod:
    http://www.audi-sport.net/vb/showthread.php?t=30421
    #26
  28. 1210tech
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    1210tech Four Ring Fanatic

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    [Dec 21, 2006]
    excuse my ignorance but what the hell is an EGR Valve? what does it do? where is it? and how big a job is it to remove and clean???

    i have a 2001 2.5 tdi quattro B6 chassis that has done over 100k and reading this has made me think i better check mine and give it a good clean!

    please help! :think:
    #27

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