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Author Topic: Turbo loss  (Read 14600 times)

Offline topher

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Re: Turbo loss
« Reply #10 on: 29 September 2006, 13:42 »
Overboosting leading to a temporary limp-mode is very common in TDI's. It's usually down to a split vacuum or boost hose.. good luck finding which one :wink:
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Offline richandhazel

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Re: Turbo loss
« Reply #11 on: 29 September 2006, 15:11 »
I'm optimistic that I will find a ruptured or disconnected vaccuum hose somewhere. I want to vagcom it first.

Trouble is I can't move out in the garage! Immediately prior to our wedding we cleared out the house and everything got dumped in there. Need to spend a few days clearing up :rolleyes:
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Offline richandhazel

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Re: Turbo loss
« Reply #12 on: 04 October 2006, 15:34 »
Ok, did a scan this afternoon and look what I have found:-

Address 01 -------------------------------------------------------
Controller: 038 906 018 BM
Component: 1,9l R4 EDC G400SG 2115
Coding: 00002
Shop #: WSC 31414
1 Fault Found:
17958 - Charge Pressure: Control Deviation
P1550 - 35-00 - -
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Offline Rhyso

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Re: Turbo loss
« Reply #13 on: 04 October 2006, 16:09 »
So what does that mean in English?? lol

is that a leak in one of your pipes??  :undecided:
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Offline richandhazel

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Re: Turbo loss
« Reply #14 on: 05 October 2006, 11:50 »
Well I read back through your post earlier in this thread and this was something that you found:-

You need to get it on vag-com, if its a pressure deviation message or something similar it will almost defo be a split hose somewhere

So I'm hoping thats the case......
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Offline richandhazel

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Re: Turbo loss
« Reply #15 on: 05 October 2006, 13:09 »
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Offline Mantamad

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Re: Turbo loss
« Reply #16 on: 05 October 2006, 22:51 »
Some good information there.
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Black 2002 GT TDi 130

Offline bobdferret

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Re: Turbo loss
« Reply #17 on: 08 January 2007, 14:30 »
I'm having the same problem with my TDI.  Goes into limp mode when I reach around 75/80 mph. :angry: vagcom also showed a pressure deviation.

Did you find a split pipe?
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Offline richandhazel

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Re: Turbo loss
« Reply #18 on: 13 January 2007, 11:10 »
Yes I did. Very tiny hole in the hose that leaves the turbo and enters the precooler. Replaced the hose for £20 and it hasn't done it since.

Just serviced a 130 Golf TDI that had the same problem. Again, I found a leak only this was more serious and in the hose theat enters the EGR valve/inlet manifold. It is one of the newer type hoses that has the 2 lugs and a circlip. One of the lugs was broken so the hose had partially twisted out. Use could even see the black oil deposits all over the bulkhead where it had been leaking so badly. He reckons he now notices an improvement in performance now that we have replaced it. Oh and it hasn't done it since.

With his you could actually hear it leaking so its worth having a good listen whilst driving. Maybe even remove the upper engine cowl. 
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Offline bobdferret

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Re: Turbo loss
« Reply #19 on: 13 January 2007, 16:33 »
Thanks for that......will give them all a check!
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