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boost pressure control valve mechanical malfunction

Discussion in 'A3/S3 Forum (8L Chassis)' started by stoneys3, Sep 1, 2010.

  1. stoneys3
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    stoneys3 Member

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    hi, this is the fault on my s3 2001 amk. anyone had this? and is it a case of replacing the valve or there any ways round it??

    ash
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  2. stoneys3
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    stoneys3 Member

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    is the n249 the boost pressure valve?
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  3. stoneys3
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    stoneys3 Member

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    it says on diagnostics boost pressure valve malfunction (n249) so i have answered my own question there. does anyone know if i remove this and do the n249 mod will it stop my boost problem. problem being a loosing alot of boost intermittant. any one had similar problems?
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  4. <tuffty/>
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    <tuffty/> Badger 5 Edition Staff Member Moderator

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    Bypassing the N249 valve won't fix the issue entirely I don't think.... If the ECU stills thinks there is a problem with the N249 regardless of the bypass (as you would need to leave it electrically connected) then the ECU will still throw a fault code and do all the other stuff to protect itself like mess with fuelling and cut boost using the N75 valve....

    I suspect replacing the N249 for a working one (without actually seeing the fault code I can't say for sure) will have to be done regardless

    <tuffty/>
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  5. stoneys3
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    stoneys3 Member

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    ok yeh, snap-on code is p1200 and reads boost pressure control valve (n249) mechanical malfunction. so i need to source i new valve by the sounds of it.
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  6. chippie
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    chippie Member

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    I had the same fault code on mine, changed the valve but still had fault, then about a week later a coil pack went, changed all four and now no fault code for the n249 valve, don&#8217;t know if a faulty coil pack could cause the fault or if it was just a coincidence
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  7. stoneys3
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    stoneys3 Member

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    hmmmm?? how much was the valve? if the valve and coil packs arnt too much i mite change them all for the grin. where you get them from??
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  8. 1animal1
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    1animal1 The Clar!! it mouves!!!

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    get coil packs from the dealer, prob an extra £20 over non standard but theres been loads of updates and OEM in this instance really is best

    the N249 will be dealer only....

    contact stoke audi or pjmspeedy off here as they will do them cheaper than your main dealer
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  9. stoneys3
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    stoneys3 Member

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    al give them a ring monday. you say extra £20 is this each or for 4 thats £80 otherwise.
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  10. Madeley
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    Madeley Member

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    OE coil packs are about £30 each.
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  11. stoneys3
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    stoneys3 Member

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    are the original packs bosch?
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  12. stoneys3
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    stoneys3 Member

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    i dont know wether to get the valve first and try that or get the coil packs first i can get the packs for 94inc vat and the valve 54+vat..decissions?
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  13. Madeley
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    Madeley Member

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    mine were Hitachi.
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  14. stoneys3
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    stoneys3 Member

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    any advice on which to go for first? valve or coil packs?
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