 | Home > Technical > Turbo under boost |
 
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| MK Member Since: 28 Aug 2008 Location: Santiago Posts: 2412   
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IŽll ask anyway
Service calls only apply to cars bearing warranty?  Puma 110" SW
............................................................. Earth first. Other planets later |
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2nd Feb 2011 1:28am |
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| Lorryman100 Member Since: 01 Oct 2010 Location: Here Posts: 2686 |
In respect to this fix it was issued as a technical bulletin in January 2010 to fix the stress and fracturing of the turbo modulator harness. As I am in warranty this fix will be done free. But if you are out of warranty and your vin falls between these: VIN Range: LD732615-LD779287 I would be going to my local dealers quoting LTB00254 and asking what they will do for me, but only if you are having trouble with Turbo under boost. I would also think the kit is available to buy through the parts department but you need IDS to set the configuration: Please ensure that you carry out all the ignition on/off requests to ensure correct module configuration, if this is not done it can cause damage to the modules on the vehicle. If you pm me your email address I will send you the bulletin including the how to guide. |
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2nd Feb 2011 2:31pm |
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| Lorryman100 Member Since: 01 Oct 2010 Location: Here Posts: 2686 |
Just got home after collecting Landy from dealers. Checked for fault codes and none showed, took the long way home and worked the engine. Got home and rechecked for faults with none showing in any of the modules. So the Turbo modulator service link kit seems to have solved the Turbo under boost (I would clear this fault with the nanocom only for it to reappear after a short drive). They also replaced all the unpainted rivets on the exterior, as this comes as a full kit, instead of just replacing the 3 or 4 rusty ones as I was expecting. EGR and MAF replaced, unfortunately the new bumper arrived damaged so they ordered another only to find these on back order due to problems with the current batch! Will keep an eye on the fuel usage over the next week or two to see if it improves any.
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4th Feb 2011 4:43pm |
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| Bomber82 Member Since: 20 Oct 2009 Location: Alessandria - Italy Posts: 216  
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Since before Christmas I'm having some irregularities in the operation, making the Def jumping...
In addition, fuel consumption has skyrocketed, I can not make more than 8.5 km / l Yesterday I've read the fault codes with Nanocom:
Then I've reseted the fault codes and this morning, going work, the situation is :
I'll call my dealar today, but strange that they hadn't checked fault codes before Christmas when they substituted the rear diff..... Matteo Defender 110 Td4 SE MY 09 |
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9th Feb 2011 10:20am |
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| rusty66 Member Since: 22 Jun 2010 Location: Rhineland Posts: 60 
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Hello,
seems that I could have the same issue as I've got same symptoms incl. fault codes and my car falls under the VINs mentioned above. Has anyone got the illustrations, they seem to be gone from the post and I'd really like to have the information offered by Lorryman, too. What I don't understand is why I can't just extend the loom at the plug but should 'splice' in a new loom? I also don't quite understand the bit about IDS / ignition on off requests. What could happen to the modules (which modules) as Lorryman, I think, mentioned? Thanks for any help
Boris |
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26th Jun 2011 7:39pm |
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| Lorryman100 Member Since: 01 Oct 2010 Location: Here Posts: 2686 |
Boris,
I have cleared my gallery to make room for a new project so drop me a pm with you're email address and I will send you the relevant info on the loom |
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27th Jun 2011 1:20am |
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| Lorryman100 Member Since: 01 Oct 2010 Location: Here Posts: 2686 |
AdrianCR,
ref you're pm, email sent |
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29th Jun 2011 10:09am |
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| AdrianCR Member Since: 23 Aug 2009 Location: Costa Rica Posts: 52 
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thank you very much! Very useful information!
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29th Jun 2011 3:50pm |
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| kirk Member Since: 08 Dec 2012 Location: Abu Dhabi, UAE Posts: 28  
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Hi Lorryman,
With interest (and a bit of relief) I read this post today. My 2009 defender puma 2.4 has a consistent turbo underboost (P0299) fault - using a scangauge. Today, I went to an independent mechanic in Duabi. He noticed that some of the wires at the turbo modulator had been broken and others were damaged (see attached photo). He also scanned the ECU for codes and found P0046 "Turbo/supercharger boost control solenoid 'A' curcuit range / performance curcuit resistance above threshold" To solve the problem, we ordered an engine harness (LR025175). It should arrive today or tomorrow and be installed within a day or two. But this is a GBP 300 part plus labor to install. Perhaps the part (LR020663) you describe here might be just the ticket. And at GBP18 instead of GBP300 + labor, this has the potential to save me a boat load of money. It would be very helpful to me, if you could post or pm me the photos and instructions that seem to be no longer part of your original post. Cheers, Kirk |
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29th Sep 2013 4:58pm |
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| dgardel Member Since: 30 Nov 2008 Location: Veneto (Heart & Head) Posts: 3586
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 Click image to enlarge Discovery 5 td6 HSE Stornoway Gray Outback Engineering Limited Edition
IID Pro MV License |
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29th Sep 2013 5:06pm |
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| Lorryman100 Member Since: 01 Oct 2010 Location: Here Posts: 2686 |
Click image to enlarge Click image to enlarge Click image to enlarge Click image to enlarge LR020663 is the harness repair kit for the above tech bulletin as listed in parts required.
Answered here instead of pm. :thumbsup: Admin note: this post has had its images recovered from a money grabbing photo hosting site and reinstated  |
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29th Sep 2013 5:12pm |
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| kirk Member Since: 08 Dec 2012 Location: Abu Dhabi, UAE Posts: 28
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You all are awesome. Asked and answered in less than an hour.
cheers |
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29th Sep 2013 5:44pm |
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| Caterham Member Since: 06 Nov 2008 Location: Birmingham Posts: 6298  
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just looking at the bulletin service sheets it mentions the ferrite ring as seen in dgardels photos......
I'd assumed it was a 'little bit of magic' that dgardel had added, now I'm wondering if its a 'standard fit' ? anyone else got one? |
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6th Nov 2013 10:00pm |
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| Skye_Rover Member Since: 29 Aug 2013 Location: Skye Posts: 85  
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Splicing a new loom replaces the potentially damaged portion of the harness - the problems around this are due to fatigue and fracturing of the cables, leading to inductive issues - hence the ferrite ring seen in the illustrations. The ignition key cycles together with the programming sequences are important, because there is a risk that the feedback position range of voltages for the turbo actuator may shift, therefore the ECU must be allowed to re-learn the upper and lower limits in a correct sequence. If the position feedback is misinterpreted, there is a risk of the turbo locking solid on the worm drive (a major, major issue with this type of Hella controller on Garrett turbos) as the positioner is driven past its physical end-stop. Hope that helps a little, sorry for the appalling delay in responding to this bit of the thread.  Roads? Where we're going, we don't need roads. |
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6th Nov 2013 11:40pm |
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