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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
12%
 12%  [65]
EGRs not blanked & MAP sensor gunky
61%
 61%  [315]
EGRs blanked & MAP sensor clean
13%
 13%  [68]
EGRs not blanked & MAP sensor clean
12%
 12%  [63]
Total Votes: 511

DSL
Keeper of the wheelie bin 


Member Since: 11 May 2006
Location: Somewhere.
Posts: 56363

United Kingdom 2011 Discovery 4 3.0 SDV6 HSE Auto Zermatt SilverDiscovery 4

Well I used to. A long time ago in a galaxy far, far away. Whistle
 

11 D4 HSE - just Dee, no more Double Disco. Sad 
 
Post #16064907th Feb 2016 9:01 pm
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JksD4
 


Member Since: 31 Mar 2015
Location: Highlands
Posts: 100

United Kingdom 2010 Discovery 4 3.0 TDV6 HSE Auto Stornoway GreyDiscovery 4

DSL
Here is my MY2010 D4 at 70k miles

http://www.disco3.co.uk/gallery/albums/use...mage~4.jpg
 MY2010 D4 3.0 TDV6 HSE Stornaway grey  
Post #16069328th Feb 2016 7:09 pm
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DSL
Keeper of the wheelie bin 


Member Since: 11 May 2006
Location: Somewhere.
Posts: 56363

United Kingdom 2011 Discovery 4 3.0 SDV6 HSE Auto Zermatt SilverDiscovery 4



Cheers. Thumbs Up No where near as bad as the D3s at way less miles. Confused
 

11 D4 HSE - just Dee, no more Double Disco. Sad 
 
Post #16069338th Feb 2016 7:12 pm
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raptor_uk
 


Member Since: 09 Aug 2013
Location: durham
Posts: 26

United Kingdom 

Done mine tonight, picture not included but was like everybody elses, took a bit to clean Wink 100% better 58 Plate HSE

edit

fuel economy up by +2 mpg also
  
Post #161075815th Feb 2016 7:17 pm
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berty83
 


Member Since: 07 Oct 2013
Location: Stamfordham, Northumberland
Posts: 142

United Kingdom 2007 Discovery 3 TDV6 SE Manual Java BlackDiscovery 3

Other half at work and no kids. Amazing how much you get done without distractions


Click image to enlarge
 Getting fed up of stalkers  
Post #161758228th Feb 2016 1:07 pm
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Jarvis
 


Member Since: 16 Dec 2009
Location: West Berkshire
Posts: 233

England 2008 Discovery 3 TDV6 SE Auto Rimini RedDiscovery 3

At 85K before:
Click image to enlarge

and after:
Click image to enlarge


No noticeable difference in responsiveness afterwards Sad
  
Post #162418012th Mar 2016 6:07 pm
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TheSaint
 


Member Since: 07 Feb 2016
Location: Durban
Posts: 8

South Africa 2006 Discovery 3 TDV6 SE Auto Unknown ColourDiscovery 3

This is my MAP sensor before cleaning..
2006 Tdv6.
148000km and I've just blanked EGR and decatted .....

Wink
  
Post #162732018th Mar 2016 2:08 pm
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vtecviffer
 


Member Since: 10 Feb 2016
Location: Wexford
Posts: 22

Ireland 2005 Discovery 3 TDV6 S Manual Alveston RedDiscovery 3

2005 Discovery 3 116000km Before 25 - 27mpg



After EGR Blank - Injector cleaner - MAP Cleaned - MAF Cleaned (quick spray of Electrical Contact cleaner) 32mpg average over 450km run

  
Post #162760818th Mar 2016 11:21 pm
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Shellplen
 


Member Since: 05 Jun 2016
Location: Scotland
Posts: 4

2009 Discovery 3 TDV6 HSE Auto BournvilleDiscovery 3

Map sensor checked tonite despatched hubby, gunked up so gave it a clean. Currently on 28.5 mpg. So fingers crossed. Thanks for info Bow down
  
Post #16637085th Jun 2016 9:03 pm
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Lord_unsub
 


Member Since: 06 May 2016
Location: Castle Cary, Somerset
Posts: 60

United Kingdom 2007 Discovery 3 TDV6 HSE Auto Java BlackDiscovery 3

Disco3 strikes again. Read about this last night, thought I'd check at lunch break, so took my tools with me.




Glad I did! I was around the 28mpg mark on commute and 30 on a run. It was slow to respond at setting off, seems much better now, and got 30mpg on the way home, we like that Thumbs Up

It's done a mere 136000 miles, still has egr valves and is standard throughout - including the gearbox judder Laughing
 So far - 4X4 Info~3 Flash Indicators~2 Video inputs~Bluetooth Music~Dr-T~Fridge~Phone Update~SatNav on the move~Clock on Dash~Black in and out~Window Tints
To Do - LED lights in and out~Black wheels (maybe 18's?)~new grille and and rear lights 
 
Post #16644567th Jun 2016 8:23 pm
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Ambo
 


Member Since: 28 Jun 2010
Location: Ventnor Isle of Wight
Posts: 219

United Kingdom 2009 Discovery 3 TDV6 SE Auto Santorini BlackDiscovery 3

Recently the disco had a hissy fit, all the warning lights and messages came up and went into limp mode. Clear after restarting, obtained a brake light switch just in case. However read this and checked the MAP sensor, really gunged up. Cleaned and now driving like new with its remap. So thank you for the info, again a really useful forum.
 Nick
2009 D3 SE
Isle of Wight Steam Railway 
 
Post #16644777th Jun 2016 9:01 pm
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Eversleigh
 


Member Since: 09 Mar 2015
Location: London
Posts: 28

United Kingdom 2008 Discovery 3 TDV6 HSE Auto Stornoway GreyDiscovery 3

No MPG comparison as haven't taken her out since but it was very clogged.





  
Post #16897418th Aug 2016 11:45 am
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warped
 


Member Since: 09 Apr 2016
Location: Lincolnshire
Posts: 31

United Kingdom 2009 Discovery 3 TDV6 XS Manual Indus SilverDiscovery 3


What a brilliant post, couldn't believe the crud! Noticeable improvement on acceleration pick up- yet to check mileage as was already getting an average of 32.7mpg






  
Post #169078110th Aug 2016 8:52 pm
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The831Bunny
 


Member Since: 20 Apr 2015
Location: Norwich
Posts: 7

United Kingdom 2013 Discovery 4 3.0 SDV6 HSE Auto Causeway GreyDiscovery 4

Ive cleaned MAF sensors on previous vehicles without issue etc, and being a gas service engineer, know my way around test gear and a toolbox.

So after cleaning my partially dirty (but not blocked) MAP sensor and getting very little if any improvement, I decided to also clean both MAF sensors as well. Fantastic improvement in the low rpm pick up and overall acceleration too. Well chuffed!

So WHY OH WHY did I decide to re-clean the MAP sensor again... Big Cry This time on replacing it back in 'Restricted Performance', yellow engine and red triangle warning lights. Damn!

After much checking connections and measuring voltages etc, I ordered a new MAP sensor from Advanced Factors. It duly arrived as usual with excellent communication. So now Restricted Performance has gone, the red triangle has gone, acceleration is back, but the yellow engine light remains. Hoping its a calibration issue for a few miles. Can anyone offer some reassurance? TIA
  
Post #169113911th Aug 2016 7:54 pm
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The831Bunny
 


Member Since: 20 Apr 2015
Location: Norwich
Posts: 7

United Kingdom 2013 Discovery 4 3.0 SDV6 HSE Auto Causeway GreyDiscovery 4

Bump
  
Post #169298917th Aug 2016 12:57 am
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