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Home > Technical > Restricted performance |
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GundogSD4 Member Since: 04 Dec 2019 Location: Wiltshire Posts: 478 |
It is time to clean, replace or delete the EGR. |
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9th Sep 2020 5:33 am |
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Bondermark Member Since: 28 Aug 2020 Location: Wales Posts: 7 |
Hi,
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9th Sep 2020 5:56 pm |
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GundogSD4 Member Since: 04 Dec 2019 Location: Wiltshire Posts: 478 |
Search EGR blanking on this forum |
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9th Sep 2020 6:44 pm |
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jules Member Since: 13 Dec 2007 Location: The Wilds of Warwickshire Posts: 4952 |
I thought full EGR blanking off was not possible on late models as the EGr system is different to earlier ones. Am I correct?
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9th Sep 2020 8:41 pm |
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GundogSD4 Member Since: 04 Dec 2019 Location: Wiltshire Posts: 478 |
On the later cars you can blank the EGR but also need to have it deleted from the ECU. |
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10th Sep 2020 2:12 pm |
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Bondermark Member Since: 28 Aug 2020 Location: Wales Posts: 7 |
Hi Jules. Like myself driving a diesel we don't do enough hard mileage. To be honest, my TD4 SE has not missed a beat in the 5 years I've owned it. I travel 30 miles to work. The last two days going to work no dashboard text 'RESTRICTED PERFORMANCE'. With it driving perfectly. Then on my way home today, up it pops. Time to decide what to do!! Personally, I'm not a lover of bypassing what should be there. But, who knows. Hope you manage to get home safely. Bondermark |
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10th Sep 2020 5:37 pm |
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mike e Member Since: 18 Jan 2011 Location: WALES Posts: 81 |
when this happened on mine lr assist sprayed egr cleaner down air intake
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10th Sep 2020 9:44 pm |
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jules Member Since: 13 Dec 2007 Location: The Wilds of Warwickshire Posts: 4952 |
Its a bit weird - had "restricted performance" for a 2 hour drive on Wednesday across North Yorkshire. Today drove down the M6 and the fault has not reappeared - no faults via the OBD either. I guess time will tell as to what was the problem. For the last 4 years , since SWMBO retired, the FL2 only tends to be used for longer journeys (100 + miles) or for towing, so often sits on the the drive for weeks at a time. It rarely does short trips to the shops etc. So I was hoping it wouldnt suffer the effects of too many short trips despite its total mileage being low. Jules |
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11th Sep 2020 11:02 pm |
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alex_pescaru Member Since: 12 Mar 2009 Location: RO Posts: 4642 |
Certain conditions must be met in order for the EGR "sanity" check to be performed.
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12th Sep 2020 7:11 am |
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Dave47 Member Since: 31 Aug 2014 Location: Margate Kent Posts: 1331 |
Your right Alex, I sure this is the reason we are now seeing a lot of motors
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12th Sep 2020 8:40 am |
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Bobupndown Member Since: 26 Dec 2014 Location: Upside down behind the TV! Posts: 2791 |
I have the EGR blanking plate with a small hole in it on my SD4, not sure how much good its doing, certainly no noticeable difference in power or economy but if its cutting down on the crap being re-ingested into the engine it cant hurt. 50+ miles a day on fast A & B roads means the DPF is not getting clogged. Landrover - turning owners into mechanics since 1948 2014 Orkney grey Freelander SD4 GS. 2004 Zambezi silver Discovery 2 Td5 (Gone) 1963 Surf blue Morris Mini Minor Super de Luxe (my little toy) |
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12th Sep 2020 9:10 am |
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GundogSD4 Member Since: 04 Dec 2019 Location: Wiltshire Posts: 478 |
A blanking plate with a hole in it does nothing apart from restrict the flow of the spent exhaust gas re entering the engine but the end result is the same, a coked up engine
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12th Sep 2020 1:13 pm |
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Bondermark Member Since: 28 Aug 2020 Location: Wales Posts: 7 |
I have decide to go for a replacement EGR valve with my local independent garage who I have used with confidence for many years. New unit fitted but failing to program the new unit. Any ideas please????
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25th Sep 2020 12:46 pm |
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Bondermark Member Since: 28 Aug 2020 Location: Wales Posts: 7 |
After getting some technical advise regarding the fitting of a 'Pierberg' EGR valve, it turns out the new unit is a 'plug an play'. When the new EGR valve was fitted and engine started, it would cut out with different codes than with the old unit. After some frustration and costly time, it was evident the new EGR valve was faulty. Before fitting the second new EGR, a decision was made to plug it in first. No faults. Then fitted and everything is fine. Lesson learned. Plug it in first before spending 5 hrs fitting to find it faulty. Highly unlikely, but it does happen. |
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11th Oct 2020 4:34 pm |
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