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D1SCD
Member Since: 13 Feb 2013
Location: North Yorkshire
Posts: 407
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2 problems, possibly connected.. (now hopefully cured) |
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OK, so I have a couple of problems with my D3..
Firstly, It runs and drives great most of the time. That is until you try and accelerate hard, then it drops into limp mode (turn off and back on and it's fine again) Normal driving / acceleration is fine.
Secondly, the MPG isn't good. I don't think I've ever seen anything as high as 20 out of it. Never bothered me before, but with price of diesel as it is now, I could do with a bit more.
Any ideas ? Could the two things be connected ?
Thanks
Last edited by D1SCD on 8th May 2022 9:12 pm. Edited 2 times in total
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4th May 2022 11:13 pm |
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aja4x4
Member Since: 14 Apr 2019
Location: Westbury
Posts: 2459
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You need to read the fault codes or its complete guess work.
I would say its most likely a split intercooler pipe or a problem with the egr valves. Andrew
D3 2.7tdv6 2005
D4 3.0 SDV6 Commercial died and gone to LR heaven
D5 3.0 SDV6 HSE
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5th May 2022 6:04 am |
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loanrangie
Member Since: 18 Jun 2017
Location: Melbourne
Posts: 600
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Without codes its a guessing game, any error messages on the dash or big F under the speedo ?
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5th May 2022 6:58 am |
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D1SCD
Member Since: 13 Feb 2013
Location: North Yorkshire
Posts: 407
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Will get codes read today and report back later
Forgot to mention EGR's have been blanked off.
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5th May 2022 8:03 am |
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pwheeldon
Member Since: 15 Jan 2020
Location: West Yorks
Posts: 1446
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As said you do need the codes to be sure, but when mine had similar issues it was the turbo actuator stuck. In most cases it can be freed up, there are threads about it on here. Mine was broken so had to get the turbo out and serviced. Discovery 4 GS 2009 Auto Stornoway Grey
Discovery 3 s 2005 Auto Bonatti Grey Gone
Discovery 3 SE 2005 Manual Zambezi Silver Gone
Range Rover Sport HSE 2006 Black
Aston Martin DB7 VV
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5th May 2022 8:53 am |
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D1SCD
Member Since: 13 Feb 2013
Location: North Yorkshire
Posts: 407
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Codes now read -
P0405-00 Exhaust gas recirculation sensor A circuit low Permanent.
P1935 -00 Brake switch sensor signal. Intermittent
P2290-00 Injector control pressure too low. Intermittent
I'm guessing the first one is because EGR's have been blanked, and it's the last one causing problems. Any ideas what would cause this ?
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5th May 2022 12:25 pm |
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nigethecat
Member Since: 11 Sep 2016
Location: Marnoch
Posts: 4145
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Just for completeness (and to rule it out) I'd change the brake pedal switch as a first port of call, they can throw up a multitude of problems. For £20 and 10 minutes at least then you would be able to remove that from the possible causes...
Good hunting with the rest of it... I want to see the sweets before I get into your windowless van... I'm not stupid!
Corris Grey D4 Commercial SE 2016
Zermatt Sliver 2007 D3 SE manual (gone)
Indus Silver D4 HSE 2015 (gone)
Bonatti Grey D3 HSE 2006 (gone)
White D3 S (LHD) 2007 (gone)
Firenze Red D4 HSE 2014 (gone)
Black RRS 3.6TDV8 2008 (gone)
Rusty Green Defender 110 1997 (gone)
Black FL2 HSE 2013 (gone)
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5th May 2022 2:20 pm |
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aja4x4
Member Since: 14 Apr 2019
Location: Westbury
Posts: 2459
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Thats a good idea i would also suggest changing the fuel filter for a genuine one. Andrew
D3 2.7tdv6 2005
D4 3.0 SDV6 Commercial died and gone to LR heaven
D5 3.0 SDV6 HSE
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5th May 2022 8:00 pm |
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D1SCD
Member Since: 13 Feb 2013
Location: North Yorkshire
Posts: 407
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Will try and do at the weekend
Could this also cause poor MPG ?
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5th May 2022 8:44 pm |
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D1SCD
Member Since: 13 Feb 2013
Location: North Yorkshire
Posts: 407
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Well I fitted new fuel filter today, couldn't get a brake light switch in time..
I've just been for a 20 mile test drive through town and A roads. The roads were quite empty so I did imaginary overtakes kicking down and accelerating. It didn't go into limp mode once, so more than happy with results if they last.
Another surprising outcome when I got back, over the 20 miles I'd averaged 24.2 MPG (never seen it with a 2 in front before )
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8th May 2022 9:10 pm |
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aja4x4
Member Since: 14 Apr 2019
Location: Westbury
Posts: 2459
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Andrew
D3 2.7tdv6 2005
D4 3.0 SDV6 Commercial died and gone to LR heaven
D5 3.0 SDV6 HSE
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9th May 2022 6:13 am |
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