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Guide - Removing SAI, N249 & n112 valve

Discussion in 'Mk4 Ibiza FAQ's (6L) 2002-2008' started by Damoegan, Dec 20, 2008.

  1. Pew.

    Pew. Active Member

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    Think im just unlucky, i tried another resistor and still get the cel every couple days
     
  2. Pew.

    Pew. Active Member

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    The must be a reason why i appear to be the only one to get this every 2 days
    #
    [​IMG]

    cel light
     
  3. Poncho.:R

    Poncho.:R Guest

    I get the same code, but only like once a month....
     
  4. Pew.

    Pew. Active Member

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    I get it every couple of days lol it clears itself, comes back a couple days later, and round and round we go lop
     
  5. shanecupra

    shanecupra Guest

    im going to have a got at this on sunday
     
  6. dandanibiza

    dandanibiza Active Member

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    Hi,

    Just done and my ibiza fr has lost all boost, basically its gone into limp mode.. I havnt got a boost gauge so do i only have to put the 1 vac line from the dv to the inlet manifold?

    Thanks
    Danny
     
  7. Noone

    Noone Guest

    The 2 vac lines on top Right of the intake manifold go to
    - FPR
    - Diverter

    Is this how yours is connected? Can you take a photo?
     
    #87 Noone, Sep 11, 2012
    Last edited by a moderator: Sep 11, 2012
  8. dandanibiza

    dandanibiza Active Member

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    Can't at the minute.. Yeah I've got 2 vac lines on the inlet but I've got rid of all that crap on top so I've run the new vac line from the dv to the inlet..

    i havnt got the boost gauge so no t piece
     
  9. Noone

    Noone Guest

    -tried to upload a photo with markups, can't as I only have 4 posts-

    if you remove the spaces from the following and post with the image tags, its the image

    http://i616.photobucket.com/albums/tt241/nooneGTI/2vaclines.png
     
    #89 Noone, Sep 11, 2012
    Last edited by a moderator: Sep 11, 2012
  10. dandanibiza

    dandanibiza Active Member

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    Yeah mine looks the same but I'm still have boost issues, its constantly going in and out, it was doing this before the bypass anyway, maybe a boost leak somewhere.

    Heres mine anyway

    [​IMG]

    Should I put some sort of clip around the blue vac pipe to stop it coming off or will it be ok like that?
     
    #90 dandanibiza, Sep 12, 2012
    Last edited: Sep 12, 2012
  11. Noone

    Noone Guest

    Cable ties work fine at both ends of the vac lines.

    You don't have any resistors in your plugs?

    vac line routing looks fine.

    If you already had boost issues, I don't think that this is the issue for the boost. check all your vac lines for a break, scan your car, may show you whats happening.
     
  12. dandanibiza

    dandanibiza Active Member

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    Yeah I've added he resistors but still having the same issues..

    Where does everyone put the plugs once the resistors are in, mine are just sitting on top of the engine and.get pretty hot!
     
  13. ruba

    ruba Active Member

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    i'm having the same issue... tried another resistor but the cel light still coming on
     
  14. Pew.

    Pew. Active Member

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    I still get it to date every couple days. Keep a vagcom in the car to clear it when it comes on
     
  15. Damoegan

    Damoegan Sir Bob,a geordy legend..

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    The only way to stop getting a CEL light after removing the SAI is to have the SAI mapped out....
     
  16. wazza16

    wazza16 Mr.Waz

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    ive got a similiar boost issue, valves bypassed, SAI bypassed, been stage 2 mapped by big fish tuning and SAI mapped out, what i get is 1.5bar boost peak then drops to a bar then up to 1.4 then down to 1 bar then by around 5000rpm it will hold about 0.7bar which is a total pain!! it should peak around 1.5 and hold around 1.2bar to redline! any ideas? boost leak, MAF etc??

    car is off the road for winter but im wanting to sort this issue before its back on the road in april!

    Thanks.
     
  17. Damoegan

    Damoegan Sir Bob,a geordy legend..

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    It needs smoke tested for leaks..
     
  18. wazza16

    wazza16 Mr.Waz

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    ye im going to get it smoke tested, does this sound like a boost leak issue?

    Thanks.
     
  19. Damoegan

    Damoegan Sir Bob,a geordy legend..

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    Hard to call..

    Almost sounds like N75 fualt!
     
  20. wazza16

    wazza16 Mr.Waz

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    Ye that what I thought put a new n75 before the map, mite try another!
     

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