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S4 Problems

Discussion in 'Audi S4/A4/A4 Cab (B7 Chassis)' started by S4_BAZ, Oct 23, 2009.

  1. S4_BAZ

    S4_BAZ New Member

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    Hi Guys,

    First I would like to say Hello to all, Great site, and loads of helpfull people...

    I have a problem with my S4 Avant, its a 2005 B7 and have been having problems with the Emissions control light coming on.

    VAGCOM reckons it Bank 2 Sensor 2, but so far I have had both post CAT oxygen sensors replaced all spark plugs, cylinder 8 coil pack and also the MAF sensor replaced, and still the light is coming on.... Could I have a possible problem with the wiring loom ? Any ideas????

    I love the car to bits but I'm Starting to loose faith in it..... :confused:
     
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  3. NHN

    NHN Retrofitter - Audi - VW - Skoda - Seat
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    Welcome to the site.

    Whats the error in vagcom & what vagcom version you running.
     
  4. S4_BAZ

    S4_BAZ New Member

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    My mechanic ran the diags, but im heading up to his place tomorrow so will be able to get the codes and VAGCOM version...
    I don't know if its related but the car was also having a cylinder 8 missfire... Its very strange
     
  5. S4_BAZ

    S4_BAZ New Member

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    Finally got the codes.

    P0160 O2 sensor bank 2 sensor 2. No Activity (16544)
    P0159 O2 sensor bank 2 sensor 2. Response too slow (16543)

    Diags were run on a Snap-On Solus Pro.

    No more cylinder misfires since changing coil pack which I'm relieved about.

    Any Ideas ?

    Thanks...
     
  6. NHN

    NHN Retrofitter - Audi - VW - Skoda - Seat
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    Any news on this mate, dont suppose it is related to the looms supplying the sensors?
     

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