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  1. fault code v157 and engine management light on 
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    hi
    can anyone please help have got audi a3 2.0tdi 06 engine code bkd and have engine management light on permanantly have had it on diagnostics and it comes up fault code 12547 motor for intake manifold flap(v157)malfunction p3103
    have changed throttle body and ,egr valve ,removed fault code but after a day or 2 the engine management light comes back on with same fault code
    THE CAR RUNS PERFECTLY WELL BOTH BEFORE AND AFTER PARTS WERE CHANGED
    HAS ANY ONE GOT ANY IDEAS
     
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  2. Re: fault code v157 and engine management light on 
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    check fuse
     
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  3. Re: fault code v157 and engine management light on 
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    Quote Originally Posted by pusstv View Post
    hi
    can anyone please help have got audi a3 2.0tdi 06 engine code bkd and have engine management light on permanantly have had it on diagnostics and it comes up fault code 12547 motor for intake manifold flap(v157)malfunction p3103
    have changed throttle body and ,egr valve ,removed fault code but after a day or 2 the engine management light comes back on with same fault code
    THE CAR RUNS PERFECTLY WELL BOTH BEFORE AND AFTER PARTS WERE CHANGED
    HAS ANY ONE GOT ANY IDEAS
    See if this link helps at all. You say you changed 'throttle body' but do you mean intake manifold complete with motor ?

    http://wiki.ross-tech.com/wiki/index...9/P3101/012545
     
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  4. Re: fault code v157 and engine management light on 
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    yes intake manifold complete with motor was changed will try fuse (do you know which fuse and where it is)if fuse was gone would light not come on instantly when reset ,but it could be a day or 2before it comes on
    thanks
     
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  5. Re: fault code v157 and engine management light on 
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    This thread may give you another idea - other than that I'm a bit stuck, sorry !

    https://www.vwaudiforum.co.uk/forum/s...ode-p3103-v157
     
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  6. Re: fault code v157 and engine management light on 
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    Hi pustv , this will definately work , i hve got the same story as yours engine light come up went to mechanic, he change the throttle body for 280 pounds but the light came back on again , went back again to him and he said ohh it could be the other top part of throtle body so another 80 pounds , light went off for few hours then come back on again , so i had enough of these mechanics and there rip off prices , went to look on internet forums, some really expert and great poeple out here who knows and really willing to help for free , so i decided to to do what they said , i check the fuse next to battery compartment and its F22 FUSE FOR ENGINE COMPONENET its was gone so i change itmyself , then what i did what many have not tried yet , I HAVE UNPLUG THE BATTERY WIRES FROM THE BONNET LEAVE IT FOR 10 MINS... AND THEN PLUG IT BACK ON..... when i start the engine all the light came on ESP , STEARING WHEEL ETC BUT WHEN I START DRIVING IT WENT OFF ONE BY ONE ; AND THIS MORNING THE ENGINE MANAGEMENT LIGHT WENT OFF completley.. SO TRY THAT ; I HAVE ASKED ONE OF MY MATE AND HE SAID THIS IS A MASTER RESET ... SO CHECK THE FUSE F 22 AND THEN UNPLUG THE BATTERY WIRE FOR 10 MINS AND THEN PLUG THEM BACK AGAIN DONT worry about OF ALL THE LIGHT ALL THE CAR DOES IS READ THEM SLOWLY SO ALL OF THEM WILL GO EVENTUALLY ONE BY ONE BUT I DO RECEMMOMD TO DRIVE ONCE TO PLUG THE BATTERY WIRE BACK IN .. MANY THANKS please give me feed back if any one else tried it as really it will save you money and time and does not required ECU computer or any thing.
    kind regards
    Shuja
     
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  7. Re: fault code v157 and engine management light on 
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    thanks for advice,have checked f22 5 amp fuse reads ok,the car still runs perfect with no problems but light is on permanently on .if it is removed with vag it comes back on within a day or 2 so i am still open to suggestions if anyone can help
    thanks
     
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  8. Re: fault code v157 and engine management light on 
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    Sorry its F24 10 amp fuse not f22 my appology try that plz as my emmition light gone of today check n then unplug the battery n plug it back again thanks shuja
     
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  9. Re: fault code v157 and engine management light on 
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    thanks m8 but checked that fuse and reads ok along with every other 1 in that fuse box will just have to wait and see if someone has any more suggestions
    thanks again
     
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  10. Re: fault code v157 and engine management light on 
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    Did you ever find a solution to this? I have the exact same problem! Have checked the fuses but its not that.. what should I do next?
     
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