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My S3 is driving me mad at the moment keeps on holding back ?

Discussion in 'A3/S3 Forum (8L Chassis)' started by dre_S3, Aug 24, 2012.

  1. dre_S3
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    dre_S3 Member

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    My s3 2001 facelift has been driving me crazy for a while now :( when driving slowly or in traffic it's fine but when putting your foot down I boost what i should but it keeps on holding back sometimes it's ok, I thought it was a misfiring well feels like that so I thought I would change the spark plugs and coil packs, so changed them today still the same :( checked for faults prior that with my vag scanner and I'm getting 01279 longitudinal acceleration sensor which I knew about when my abs and esp lights were coming on in the past,
    but I cleared the fault and and it was fine for a while now it's come back surely this can't cause all these problems can it ? I have no other faults

    Could it be a boost leak sometimes sounds like it or something collapsing, I have checked around and seems ok was thinking the puck valve could be faulty or maybe n75 just don't know

    Please help
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  2. Greg-S3
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    Greg-S3 Member

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    id go to a garage and have it smoke tested for boost/air leaks before anything else!
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  3. <tuffty/>
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    <tuffty/> Badger 5 Edition Staff Member Moderator

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    Well... do the obvious stuff first mate... check all the pipes under the inlet manifold... and by check I mean pull and poke them about... a tell tale sign is oil... if there is oil on the outside covering stuff then its been blow out from somewhere...

    A smoke test would help if there is someone local to you that can do it...

    Whats the idle like?...

    <tuffty/>
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  4. dre_S3
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    dre_S3 Member

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    Yeah did think of that just finding one in the Bedfordshire area ?
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  5. JD09
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    JD09 I'm not modding, I'm improving

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    Paul, my idle is slightly bumpy, presume that again points to PCV leak?
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  6. dre_S3
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    dre_S3 Member

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    Saying that mate there is a little oil that I noticed today at the back to the right of the inlet manifold should I take of the mani to have a good look will try and take some pictures and post them up
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  7. dre_S3
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    dre_S3 Member

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    Forgot to mention my idle is fine
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  8. Greg-S3
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    Greg-S3 Member

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    im in northampton with a smoke test machine if that helps?
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  9. <tuffty/>
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    <tuffty/> Badger 5 Edition Staff Member Moderator

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    Potentially... happening more often these days... cars are getting old, oil + rubber = fail....

    <tuffty/>
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  10. <tuffty/>
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    <tuffty/> Badger 5 Edition Staff Member Moderator

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    You have your own smoke tester? quite an expensive bit of kit to buy :)

    <tuffty/>
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  11. JD09
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    JD09 I'm not modding, I'm improving

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    Just need to get involved under the bonnet more, get to grips with the car like I did with the Clio. Think the TIP refit and PCV needs to be the start of it. Potentially do the Catchcan as well.
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  12. <tuffty/>
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    <tuffty/> Badger 5 Edition Staff Member Moderator

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    Do it! :D

    <tuffty/>
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  13. Greg-S3
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    Greg-S3 Member

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    i wish mate, the garage i run has one! but i have access to it as and when
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  14. dre_S3
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    dre_S3 Member

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    That would be great mate when would you be able to do it ? I'll sort you out obliviously :)
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  15. Greg-S3
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    Greg-S3 Member

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    pm me your phone number and i'll give you a call to arrange, but potentially next saturday if thats any good to you as i'm away for the bank holiday weekend
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  16. dre_S3
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    dre_S3 Member

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    Cool mate I have pm you :)
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