Webber88
Member Since: 03 Jan 2021
Location: Nottingham
Posts: 3
  
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Hi all, I have been a Landrover owner for about a year now with my Discovery 4 3.0 SDV6 2011. The other day I got a restricted performance message come up on the dash with no obvious changes at first. I then realised that I now have a loss of power at higher revs. It doesn’t have that kickback of power when you ask for it and this is very noticeable on the motorway. I had the AA out to see what the issue would be and the diagnostic came up with the following fault codes: P0101, P0102, P0103, P00AA, P010B, P010C, P010D. These are all pointing towards the MAF sensor. Having heard that cleaning these could solve the issue I decided just that, to no avail. I also swapped them with gave me even more reduced performance. I’ve checked all the pipe work I can with no signs of splits and I have also cleaned the MAP sensor. Apart from replacing the primary MAF sensor I’m out of options. Does anybody know what else I could try or have experienced this issue before? Thanks Danny Webber
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 3rd Jan 2021 7:40 pm |
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Weyboat
Member Since: 13 Apr 2018
Location: Weymouth
Posts: 273
 
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If by switching the MAF sensors your performance is worse, this would indicate that the secondary MAF sensor is at fault and by putting it into the primary position you have exacerbated the situation.
Personally, I would buy a new MAF sensor and replace the faulty one. Gone 2016 Landmark D4
Current 2015 HSE D4 - AKA - 'Gandalf the Grey'
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| 3rd Jan 2021 10:12 pm |
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Kviasen
Member Since: 24 Dec 2020
Location: Norway
Posts: 107
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Secondary turbo inlet to charge air cooler blocked by oil due to oil drain from secondary turbo is not sufficient and carry over to cooler inlet.
Oil drain pipe from turbo needs to be modified.
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| 3rd Jan 2021 10:50 pm |
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Moo
D3 Decade
Member Since: 13 Aug 2010
Location: UK
Posts: 14403
  
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Split manifold D4 HSE EU6 (Known as Jeeves)
New Defender L663 110 SE (known as Noddy!) Sold
Sold Volvo XC90 R-Design (known as Basil)
Sold - D4 HSE (Known as Gerty)
No longer the Old Buses original owner 
231,000 miles and counting
05 S manual owned from March 2005
D4 Face lifted
Still original injectors and turbo
V8 Front brakes
BAS Remap, Allisport Intercooler and deCat
EGRs blanked
T-Max split charge
Hanibal Expeedition rack
Prospeed ladder
Duratrac tyres
IID BT
BAS FBH control
Last edited by Moo on 4th Jan 2021 1:06 am. Edited 1 time in total
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| 3rd Jan 2021 10:55 pm |
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Kviasen
Member Since: 24 Dec 2020
Location: Norway
Posts: 107
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| 3rd Jan 2021 11:01 pm |
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rangehelper
Member Since: 04 Nov 2011
Location: Maidstone
Posts: 52
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Clean the absolute pressure sensor (located on top of the throttle assembly)
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| 3rd Jan 2021 11:36 pm |
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EVO575
Member Since: 04 Apr 2017
Location: NI
Posts: 13
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My d4 had the same symptoms.It was a split intercooler.
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| 2nd May 2021 7:43 pm |
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