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Audi a3 problem with revolutions.

  • 03-07-2009 8:03pm
    #1
    jaffa20
    Registered Users, Registered Users 2 Posts: 4,552 ✭✭✭


    Please help:eek:

    Just bought a new audi a3 and getting it checked over for an nct test next tuesday. A friend who was a mechanic checking over says all is fine but one thing.

    For the nct test, the revs have to stay at 2,500 to test the emissions.

    The revs in my car jump from 1,500 to 3,000 and it's not possible to keep it around 2,500.

    what could be the cause of this:confused:

    All he told me is something about an electric accelorator instead of a cable one. I don't know who to bring it to. I tried another mechanic and he doesn't have any idea what's the problem.

    I feel stupid for buying a car without nct now. it's all doing my head in :mad:

    Help please:(


Comments

  • #2
    crosstownk
    Registered Users, Registered Users 2 Posts: 12,863 ✭✭✭✭crosstownk


    It could be a fault with the pedal sender. All modern Audis are 'fly by wire'. Realistically, you'll need to have the values returned by the pedal sensor analysed.
    Untitled Image




  • #3
    jaffa20
    Registered Users, Registered Users 2 Posts: 4,552 ✭✭✭jaffa20


    crosstownk wrote: »
    It could be a fault with the pedal sender. All modern Audis are 'fly by wire'. Realistically, you'll need to have the values returned by the pedal sensor analysed.

    i really hope it's that simple. I'm bringing it to vw expert (more or less same as audi) on monday so hope to get it fixed for the nct. If not, i'll run it through the nct anyway and see what happens.


  • #4
    Mr.Diagnostic
    Registered Users, Registered Users 2 Posts: 937 ✭✭✭Mr.Diagnostic


    Is this a 1.6 with AVU engine code, probably year 2000?
    Does the car drive ok?
    There are no fault codes stored?
    It will hold steady revs at 4k ish?

    If yes to all the above, then its a reasonably common issue. Dont go spending loads on it to try and fix it as there is nothing wrong **.
    In the UK they check emissions at just over 4000rpm on this engine to get around the problem.
    I only ever saw one in Ireland. The NCT centre were not accepting that there was an issue and I sent the customer off to contact NCT technicial. Never heard how they got on. I am sure google would throw up some info on this.

    **difficult to say online that there is no other fault.


  • #5
    anon11
    Closed Accounts Posts: 131 ✭✭anon11


    Most vw, audi, skoda 1.6's with drive by wire, the emissions need to be checked with headlights switched on, rear window demistor etc to put a load on the battery:) Thats the only way you'll be able to hold 2-3k revs;)


  • #6
    jaffa20
    Registered Users, Registered Users 2 Posts: 4,552 ✭✭✭jaffa20


    anon11 wrote: »
    Most vw, audi, skoda 1.6's with drive by wire, the emissions need to be checked with headlights switched on, rear window demistor etc to put a load on the battery:) Thats the only way you'll be able to hold 2-3k revs;)

    OMG, i hope you are right. I will check that out today. Hopefully it will work. Surely the guys will know that during the nct.:confused:


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  • #7
    anon11
    Closed Accounts Posts: 131 ✭✭anon11


    Yes the nct are aware of this its perfectly normal:)


  • #8
    jaffa20
    Registered Users, Registered Users 2 Posts: 4,552 ✭✭✭jaffa20


    Yep guys,you were right cause i was up at the nct centre this morning just to make sure. Weird that all the mechanics i was talking to had never heard of this. Just hope all is well enough to pass now. I'm happy it wasn't serious. I love my new car :D

    Thanks guys.


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