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Go and clean your MAP Sensor NOW!!!
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How's your MAP sensor?
EGRs blanked & MAP sensor gunky
13%
 13%  [76]
EGRs not blanked & MAP sensor gunky
60%
 60%  [352]
EGRs blanked & MAP sensor clean
13%
 13%  [80]
EGRs not blanked & MAP sensor clean
13%
 13%  [76]
Total Votes: 584

Robbie
 


Member Since: 05 Feb 2006
Location: ¯\_(ツ)_/¯
Posts: 17932

United Kingdom 2013 Discovery 4 3.0 SDV6 HSE Auto Baltic BlueDiscovery 4

I've not looked.

Perhaps tomorrow.

Thumbs Up
 Land Rover - Turning Drivers into Mechanics Since 1948

Battery & Quiescent Current Drain Testing

Diagnostics for:
Defender, FL2, D3, D4, Evoque, RRS & FFRR
A not-for-profit enterprise


 
 
Post #12651025th Apr 2014 5:21 pm
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euangibson
 


Member Since: 24 Dec 2010
Location: Borders
Posts: 11027

Scotland 2012 Discovery 4 3.0 SDV6 HSE Auto Firenze RedDiscovery 4

DSL wrote:
Obvious question but now that the 3.0 lumps have been out there for a while, how are their MAP sensors looking?


I'm on 26k and checked about 4k ago....clean as a whistle Thumbs Up
I regularly (roughly every 6th fill) stick a dose of Millers in,and for a brief period (2 months) used 2 stroke......only use supermarket diesel,other than the very odd foray into "premium" stuff....make what you will of that.... Very Happy
 "Better to remain silent and be thought a fool,than to speak out and remove all doubt" ?.....what rubbish...

Locking rear E-diff
RLD spare wheel protector & sump guard
Extended roof rails
Series 111 mudflaps
Black side tubes,grill and vents
Timed climate remote
Hids4u interior lights

D4 Firenze my2012 HSE
D3 Java 2005 SE manual (sold,sadly,thanks for the memories)
1966 '88 Series 2a....still starts in the morning better than I do... 
 
Post #12651355th Apr 2014 6:43 pm
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Phantomf4
 


Member Since: 01 Jan 2014
Location: Renfrewshire
Posts: 201

Scotland 2005 Discovery 3 TDV6 SE Auto Buckingham BlueDiscovery 3

Just checked mine. 05 reg 69,700 miles EGRs not blanked.




After cleaning




Whilst I was under the hood I checked the air filter....



No idea where the car had been before I got it, in a forest perhaps?

  
Post #12651455th Apr 2014 7:06 pm
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wantmedic
 


Member Since: 06 Jun 2013
Location: Brighton
Posts: 22

England 2005 Discovery 3 TDV6 SE Auto Cairns BlueDiscovery 3


Just done mine, 127,000 on the clock. Full EGR removal yesterday and thought I would give it a go.. Also re out in the BAS map so it can re calibrate with the clean sensors.

Was getting 22 mpg in town and 24 on a run.. Will see if it makes a difference Rolling Eyes
 2 D3 ‘s’ ambulance conversions and 2 D3 ‘SE’ for home (His and Hers)
110 for the nasty stuff (Now Retired) 
 
Post #12786232nd May 2014 5:21 pm
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marcap599
 


Member Since: 13 Dec 2010
Location: Munchen
Posts: 959

Germany 2010 Discovery 4 3.0 TDV6 S Auto Aintree GreenDiscovery 4

On my D4 2010 with 118.000 Km I got "limited performance" message on the dash.
The connection wit an OBDII unit has detected a failure on the sensor of intake pression, so I have done the cleaning.

Found it really dirty, cleaned with WD40 and cotton-fioc.
After a first reset all seems ok but, unfortunately, the ECU detect some malfunctions after random period of time, seems It is too late for cleaning only, I need to replace the sensor.

Does somebody know the part/no for the 3.0 TDV6 211 CV engine?
 marcap599  
Post #128368213th May 2014 9:52 pm
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hgbosch
 


Member Since: 25 Oct 2010
Location: Pretoria and Zürich, Switzerland
Posts: 188

South Africa 2005 Discovery 3 TDV6 S Auto Maya GoldDiscovery 3

Hi marcap599

Before I get to the topic, you live in a beautiful area!! I had been there 2001, 2002, 2003 when we visited the 1000 Miglia in May with our 1955 Mercedes SL. We used to stay in Sirmione Very Happy

Now to the topic on hand.

MAF and MAP sensor may only be cleaned with something like Würth brake cleaner spray. To do this, remove the misbehaving part and spray it from a distance of about 15-20cm to clean it externally and also spray into the orifice.

DO NOT UNDER ANY CIRCUMSTANCES WHATSOVER PROBE INTO THE HOLE TO CLEAN!!!!

This would destroy the sensor, as has happened in your case.

To clean the MAF sensor, remove and spray it from both sides onto the hot wire to remove accumulated grime. This will return it to service. MAF sensors have a useful life of 90'000km - 140'000km depending on operating circumstances.

A proven way to prevent this buildup of gunk into the intake system is to add 5ml of JASO-FC compliant 2-stroke oil per 1 litre of diesel. This will prevent carbon build up. It will also assist in keeping the EGR system clean. Here in SA we remove the CAT and blank the EGR's and then add a remap to really make these beasts fly.

Here in SA we use a locally produced product "Poly-TFE" which we add to the engine oil once. This seems to cure the tendency of those engines to through bearings and snap cranks.

The well known indies all use it in their workshops for customers cars.

To get some more insights into all this you can contact BABEN on this forum. I have worked closely with him and assisted him in getting the D3's and D4's "behaving" Wink
 EX AFRICA SEMPER ALIQUID NOVI
SEMPER IN FAECIBUS SUMUS SOLE, PROFUNDUM VARIAT Shocked

with kind regards

George Bosch
2005 Disco3 TDV6 S
2003 Range Rover Td6
1998 Disco1 ES 300Tdi (sold)
And some more serious stuff 
 
Post #128373914th May 2014 4:47 am
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marcap599
 


Member Since: 13 Dec 2010
Location: Munchen
Posts: 959

Germany 2010 Discovery 4 3.0 TDV6 S Auto Aintree GreenDiscovery 4

Quote:
Hi marcap599

Before I get to the topic, you live in a beautiful area!! I had been there 2001, 2002, 2003 when we visited the 1000 Miglia in May with our 1955 Mercedes SL. We used to stay in Sirmione Very Happy


Thumbs Up

Really nice area, welcome for a beer if you came once more!

Quote:

MAF and MAP sensor may only be cleaned with something like Würth brake cleaner spray. To do this, remove the misbehaving part and spray it from a distance of about 15-20cm to clean it externally and also spray into the orifice.

DO NOT UNDER ANY CIRCUMSTANCES WHATSOVER PROBE INTO THE HOLE TO CLEAN!!!!

This would destroy the sensor, as has happened in your case.


Not sure about this, the sensor had problems before the cleaning, anyway, somebody know the part no. or where to get it?
 marcap599  
Post #128375014th May 2014 5:54 am
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caverD3
 


Member Since: 02 Jul 2006
Location: Oberon, NSW
Posts: 6922

Australia 2012 Discovery 4 3.0 SDV6 SE Auto Fuji WhiteDiscovery 4

Your sensor did not work before cleaning because it was completely blocked. It did not work after because you damaged it?
 â€œThere are only three sports: bullfighting, motor racing, and mountaineering; all the rest are merely games”
Ernest Hemmingway
D4 3.0 Active Diff, Adaptive Lights, High Beam Assist, Surround Cameras, Privacy Glass.
D3 2.7:Adaptive Headlights,Electronic Rear Diff,ARB Bar,Blaupunkt Speakers,JVC Powered Subwoofer,Removable Snorkel,Mitch Hitch,Pioneer After Market Head Unit,Steering Wheel Control Adaptor,Remote Adjustable Supension Rod System, Taxside Dual Battery System. 
 
Post #128375314th May 2014 5:59 am
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marcap599
 


Member Since: 13 Dec 2010
Location: Munchen
Posts: 959

Germany 2010 Discovery 4 3.0 TDV6 S Auto Aintree GreenDiscovery 4

The sensor were working with trouble before and after cleaning, exactly in the same way.

Monitoring it with the OBD2 I can see that is working and miss the signal for a fraction of second, may be also a connection problem, but not found it. All start after servicing the car in LR official dealer.

But is not the question, does anybody kindly have the part no?
 marcap599  
Post #128376314th May 2014 6:18 am
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marcap599
 


Member Since: 13 Dec 2010
Location: Munchen
Posts: 959

Germany 2010 Discovery 4 3.0 TDV6 S Auto Aintree GreenDiscovery 4

Finally found the problem, the plug have some oxidation inside, deeply cleaned and now all is ok.
Just for information, the part number for D4 3.0 TDV6 is LR019130 .

Next step is to try the cleaning of the intake, i suppose that it is full of waste like the sensor.
Many thanks to the EGR !
 marcap599  
Post #129155031st May 2014 8:48 am
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G7jtk
 


Member Since: 03 Jun 2014
Location: Prudhoe
Posts: 861

England 2007 Discovery 3 TDV6 HSE Auto Buckingham BlueDiscovery 3

Just done mine. There was a bit of gunk there but the hole was clear. Still to test drive it.
  
Post #130433929th Jun 2014 8:06 am
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davidedwardmawer
 


Member Since: 11 Oct 2012
Location: Gironde
Posts: 174

France 2005 Discovery 3 TDV6 SE Auto Tonga GreenDiscovery 3

Ignore this!
 33370 Fargues Saint Hilaire  
Post #130449429th Jun 2014 3:45 pm
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mcsimmo
 


Member Since: 08 Aug 2011
Location: North of the south
Posts: 1795

Scotland 



Glad I checked mine. 08 MY with 81000 miles. EGR's blanked at 75000 after failure. The hole was well and truly blocked.

Cleaned it with electrical contact spray until the hole was clear. I've run it 2 days since cleaning, and can say that my throttle response at low speed is greatly improved, and when setting off from stationary.
 Man with no D3 anymore, but cant leave the forum....how sad.  
Post #131460622nd Jul 2014 5:28 pm
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winaje
 


Member Since: 21 Apr 2012
Location: Melbourne
Posts: 27

Australia 2009 Discovery 3 TDV6 SE Auto Stornoway GreyDiscovery 3

Pulled the sensor out while at work, photos not taken as gunky like all the other pics. Cleaned it with electrical contact cleaner that was conveniently available, lol. Under a lit magnifier I VERY carefully cleaned out the hole with a piece of soft thin solder, took a while, then a final clean out and tap on paper until the fluid came out of the hole clear.

Better low down throttle response. Hoping to see better economy too, as at the moment I've getting about 18MPG in medium city traffic.
 Regards, Will Church 

Last edited by winaje on 29th Aug 2014 12:00 am. Edited 1 time in total 
Post #133114128th Aug 2014 11:33 pm
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Deanicuss
 


Member Since: 29 Jan 2012
Location: Cornwall
Posts: 167

United Kingdom 2005 Discovery 3 TDV6 HSE Auto Bonatti GreyDiscovery 3

TIP don't put anything hard into the hole! it will destroy the sensor! Censored
 2005 Discovery 3 HSE

Mitsubishi Evo 5 - soon to be gone! 
 
Post #133114228th Aug 2014 11:46 pm
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