Home > Maintenance & Mods (L322) > l322 4.4 tdv8 - mechanics can't solve the puzzle - egr dpf |
|
|
Range Rover L322 Member Since: 03 Sep 2019 Location: South West Posts: 329 |
Hi Georgi,
|
||
18th Aug 2024 9:50pm |
|
GraemeS Member Since: 06 Mar 2015 Location: Wagga area Posts: 2458 |
Has the air intake donut been cleaned and the 4 hoses checked for leaks?
|
||
18th Aug 2024 10:46pm |
|
Georgi Member Since: 05 May 2024 Location: Sofia Posts: 22 |
Hi Matt, Graeme,
|
||
19th Aug 2024 5:06am |
|
JayGee Member Since: 27 Jul 2021 Location: London Posts: 3170 |
Not sure that ERG valve error is correct as the values for commanded and actual are only a few % different - what diagnostic kit is that? Also an EGR error of that amount would not only throw it's own fault code but the car would be nealy undrivable with very hesitant and uneven throttle response. I assume the mechanics have done a full and in depth fault scan? Do you have a GAP IID tool to do your own? My money would be as other have said - faulty pressure differential data and / or bad intake air leak. 2012 TDV8 Vogue (L322) |
||
19th Aug 2024 7:18am |
|
Georgi Member Since: 05 May 2024 Location: Sofia Posts: 22 |
Hi Jay,
|
||
19th Aug 2024 8:35am |
|
JayGee Member Since: 27 Jul 2021 Location: London Posts: 3170 |
The difference between actual and commanded are all that is important. 3rd party diagnostic software ( inc GAP IID) is not 100% reliable at correctly interpreting all data streams. EGR delete operations involve shutting the EGR gasflow and not having it open. The GAP tool doesn't just monitor and it can let you change and program featres and it also has a function to do forced regens. You also can monitor and record the car while you drive to see how systems respond over time and not just rely on a mechanic giving you a snapshot at the garage. Unfortunatley it sounds like you have no option but to be at the mercy of what the garage tells you and is able to do to fix this issue - good luck 2012 TDV8 Vogue (L322) |
||
19th Aug 2024 8:53am |
|
Georgi Member Since: 05 May 2024 Location: Sofia Posts: 22 |
I will buy a tool, that's for sure. Just not sure which to choose yet. By the way I saw that in the threads here and on GAP website, there is no forced regen for l322 at least in the non-pro version, and the pro is at the price of a RR itself
|
||
19th Aug 2024 9:08am |
|
JayGee Member Since: 27 Jul 2021 Location: London Posts: 3170 |
You don't need the pro version for full functionality inc forced DPF regens which were enabled by default in a recent update so the info you are looking at my be out of date. Unless you have a trusted knowledgable indy or have the time to spend doing DIY diagnostics and repairs these cars will present significant challenges to ownership. Not sure what the emissions legislations are like in Bulgaria but another option may be to have the DPF and EGR systems 'deleted'. 2012 TDV8 Vogue (L322) |
||
19th Aug 2024 9:31am |
|
Dtech Member Since: 29 Nov 2014 Location: Yorkshire Dales Posts: 45 |
I had very similar symptoms. And I turned out to be a split left hand side inlet manifold which was causing the problem. It was very difficult to spot,as there was little evidence of oil misting etc in the area of the split . |
||
19th Aug 2024 10:09am |
|
Georgi Member Since: 05 May 2024 Location: Sofia Posts: 22 |
In Sofia they are banning diesel under euro 5 this winter so with the 4.4 I am fine but I can't use the 3.6. Besides honestly I am not against maintaining complicating but cleaner vehicle, just lamenting the knowledge of the so called "knowledgable indys" I will check that about the gap tool update, probably got old info, thanks! l322 2011 4.4 TDV8 Autobiography Black l322 2007 3.6 TDV8 |
||
19th Aug 2024 12:48pm |
|
Georgi Member Since: 05 May 2024 Location: Sofia Posts: 22 |
Thanks! I think by most experienced users' advice that the smoke test will be the next step. l322 2011 4.4 TDV8 Autobiography Black l322 2007 3.6 TDV8 |
||
19th Aug 2024 12:49pm |
|
Stuart- Member Since: 16 Dec 2017 Location: UK and Hong Kong Posts: 300 |
Based on knowledge of diesel engines in general, this seems unlikely. All the glow plugs do is create initial warmth to help ignition, they go off after a minute or two of running. If one or two are down, it's unlikely to cause any problems. I cant see Range Rovers being any different in that regard. 2017 4.4 SDV8 Autobiography in black 2018 D300 SE Velar in champagne Spiffing wheel centre caps, L322 sill repair panels, etc |
||
19th Aug 2024 1:04pm |
|
Georgi Member Since: 05 May 2024 Location: Sofia Posts: 22 |
Hi Stuart,
|
||
19th Aug 2024 4:33pm |
|
Range Rover L322 Member Since: 03 Sep 2019 Location: South West Posts: 329 |
All the comments above are valid and useful.
|
||
19th Aug 2024 6:54pm |
|
|
All times are GMT |
< Previous Topic | Next Topic > |
Posting Rules
|
Site Copyright © 2006-2024 Futuranet Ltd & Martin Lewis