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Author Topic: audi 6  (Read 1803 times)

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omegaman2

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audi 6
« on: 10 January 2008, 09:42:02 »
a friend of mine has a 2.0tdi that powers down and shuts turbo off at 2000+ revs any ideas please
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Jay w

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Re: audi 6
« Reply #1 on: 10 January 2008, 09:47:07 »
Quote
a friend of mine has a 2.0tdi that powers down and shuts turbo off at 2000+ revs any ideas please

when you say powers down do you mean cuts out or just loses power?
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omegaman2

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Re: audi 6
« Reply #2 on: 10 January 2008, 09:48:41 »
loses power i.e no turbo
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Jay w

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Re: audi 6
« Reply #3 on: 10 January 2008, 09:49:52 »
i have a friend who used to work for Audi, will check....

does it chuck out smoke when it loses power?
what sort of mileage has it done?
« Last Edit: 10 January 2008, 09:50:21 by jay_w »
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omegaman2

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Re: audi 6
« Reply #4 on: 10 January 2008, 09:52:42 »
yes to the smoke  70000miles ,when you turn off engine  it seems to reset then powers down again
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theolodian

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Re: audi 6
« Reply #5 on: 10 January 2008, 09:54:27 »
It's in some sort of limp mode (there are tons of limp modes).  Need to get the fault codes read out and go from there.

Might just be a boost leak.
« Last Edit: 10 January 2008, 09:54:53 by theolodian »
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Elite Pete

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Re: audi 6
« Reply #6 on: 10 January 2008, 09:56:01 »
Possibly a holed intercooler hose.
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omegaman2

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Re: audi 6
« Reply #7 on: 10 January 2008, 09:57:34 »
i think the air flow sensor has been changed no differrence though
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Jay w

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Re: audi 6
« Reply #8 on: 10 January 2008, 09:57:44 »
one of a couple of things.....

Wastegate is stuck open this could be caused by overboosting
Turbo is knackered
its drawing oil, normally due to the second one.....

It needs to be put on the reader, friend reckons you will get a fault code of overboost, if this is the case it is the wastegate

It is in limp mode though
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theolodian

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Re: audi 6
« Reply #9 on: 10 January 2008, 09:59:52 »
Quote
one of a couple of things.....

Wastegate is stuck open this could be caused by overboosting
Turbo is knackered
its drawing oil, normally due to the second one.....

It needs to be put on the reader, friend reckons you will get a fault code of overboost, if this is the case it is the wastegate

It is in limp mode though
No wastegate on these, VNT.  Not stuck, because it turns off at 2K rpms.  Boost leak would cause smoke due to over rich.
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Jay w

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Re: audi 6
« Reply #10 on: 10 January 2008, 10:04:56 »
Quote
Quote
one of a couple of things.....

Wastegate is stuck open this could be caused by overboosting
Turbo is knackered
its drawing oil, normally due to the second one.....

It needs to be put on the reader, friend reckons you will get a fault code of overboost, if this is the case it is the wastegate

It is in limp mode though
No wastegate on these, VNT.  Not stuck, because it turns off at 2K rpms.  Boost leak would cause smoke due to over rich.

Just going with what the Audi tech told me.......

1st thing he advised....get the fault code read, he was putting money on the overboost, has seen it many time and it seems to be common
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theolodian

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Re: audi 6
« Reply #11 on: 10 January 2008, 10:13:53 »
Quote
Quote
Quote
one of a couple of things.....

Wastegate is stuck open this could be caused by overboosting
Turbo is knackered
its drawing oil, normally due to the second one.....

It needs to be put on the reader, friend reckons you will get a fault code of overboost, if this is the case it is the wastegate

It is in limp mode though
No wastegate on these, VNT.  Not stuck, because it turns off at 2K rpms.  Boost leak would cause smoke due to over rich.

Just going with what the Audi tech told me.......

1st thing he advised....get the fault code read, he was putting money on the overboost, has seen it many time and it seems to be common
OK.  Must be shutting of fuel not the turbo at 2K then.  The turbos usually get pretty loud when they are knackered though.
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omegaman2

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Re: audi 6
« Reply #12 on: 10 January 2008, 12:42:51 »
if it does say overboost what would it mean parts/cost wise :question
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Jay w

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Re: audi 6
« Reply #13 on: 10 January 2008, 14:25:29 »
Quote
if it does say overboost what would it mean parts/cost wise :question

Most likely turbo = £££s

you can get them recon'd which does save money

if the dealers are doing it tell him to lube up before taking the car down there, it will be painful  ;)

they will bend him over and spank his backside, metaphorically speaking
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Marks DTM Calib

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Re: audi 6
« Reply #14 on: 10 January 2008, 14:29:01 »
Quote
Quote
if it does say overboost what would it mean parts/cost wise :question

Most likely turbo = £££s

you can get them recon'd which does save money

if the dealers are doing it tell him to lube up before taking the car down there, it will be painful  ;)

they will bend him over and spank his backside, metaphorically speaking

And that will be just for plugging it into the diag kit......wait for the parts and labour bill  :o
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