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MAF or EGR failure
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freelaner
 


Member Since: 15 Feb 2010
Location: Cambs
Posts: 129

United Kingdom 2005 Discovery 3 TDV6 S Manual Tonga GreenDiscovery 3
MAF or EGR failure

Thought I would start a separate topic for my problem. Seem to have very similar issues to maltesenick as in his thread. No power up to 2-2500 rpm then a sudden rush of power.Appeared suddenly with no warning signs
A search on the forum has revealed 2 possible causes, the EGR or the MAF sensor.
Tonight I unplugged the MAF sensor and this gave a marginal improvement in performance but its still not how it should be.
So...does this mean that the MAF is definitely the problem or is unplugging it just improving whatever the problem is???

I await your wisdom fellow D3'ers   
Post #68530423rd Aug 2010 6:26 pm
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JF Lux
 


Member Since: 08 Sep 2007
Location: A little country in Europe
Posts: 3522

Luxembourg 2008 Discovery 3 TDV6 HSE Auto Java BlackDiscovery 3

I'd go with RGE. When I had a problem with the MAF sensor it just gave me "Engine System Fault" message. Diagnostic came up with P2199 which is different to the EGR codes. But no difference in performance etc when the MAF sensor was playing up. The next American ex-pat that calls it a "truck" is going to find out what 2.7 tons feels like on their foot...

Club "yes, I too have had the EGR's replaced..."
Club "yes, I too have had the compressor replaced..."
Club "yes, I too once had the car at the dealer for a couple of weeks nearly 4 weeks over 4 weeks...5 weeks"
Club "yes, I too have had EPB failure..."
Club "yes, I too get mysterious bings and bongs..."  
Post #68535123rd Aug 2010 8:10 pm
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freelaner
 


Member Since: 15 Feb 2010
Location: Cambs
Posts: 129

United Kingdom 2005 Discovery 3 TDV6 S Manual Tonga GreenDiscovery 3

Twas EGR failure, all fixed now!   
Post #68569724th Aug 2010 6:08 pm
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maltesenick
 


Member Since: 25 Jul 2008
Location: Tullibody - where the F's that??
Posts: 148

Scotland 2006 Discovery 3 TDV6 Base 5 Seat Manual Zermatt SilverDiscovery 3

Installed blanking plates this afternoon and "Bingo" the old performance is back. As everyone else who has done it describes - it is a bit of a "footer" but patience and perseverance gets you there - and the result is definitely worth it! Coincidentally I just refilled the fuel tank so will be interested to see if consumption changes.  
Post #68581324th Aug 2010 10:27 pm
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BrumLee
 


Member Since: 07 Mar 2008
Location: West Midlands
Posts: 1366

United Kingdom 2005 Discovery 3 TDV6 SE Auto Bonatti GreyDiscovery 3

My mpg has improved by 3mpg after doing the blanking proceedure Thumbs Up Faultmate MSV2 EXTREME
FOXWELL N624 Elite
Hantek 1008c Oscilloscope  
Post #68600525th Aug 2010 3:40 pm
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