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engine lacking ooomph - What could it be?
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lynalldiscovery
 


Member Since: 22 Dec 2009
Location: Maidstone
Posts: 7274

United Kingdom 2006 Discovery 3 TDV6 Metropolis LE Auto Bonatti GreyDiscovery 3

Bodsy wrote:
I think I'll take the RAI off tomorrow & see if it helps. Don't have any off road planned for the next few weeks anyway. I think I've still got the air intake grill in the shed. Thumbs Up


Have you checked the rubber seal between the air box and the inner wing?
Mine looks a bit worn and seems easy to displace when fitting air box.
Had problem with RAI on a def 200 defo noticed slight reduction in power when its plumbed in.  
Post #14383886th Mar 2015 6:33 pm
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Bodsy
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Member Since: 06 Nov 2006
Location: In the Clubhouse
Posts: 21361

United Kingdom 2007 Discovery 3 TDV6 HSE Auto Java BlackDiscovery 3

I havent, but that would just let more air easier, only in as requested to be pulled from the engine wouldnt it?

I've done a ouple of other pdfs will upload them now. Bodsys Brake Bible

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Post #14384196th Mar 2015 6:58 pm
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Bodsy
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Member Since: 06 Nov 2006
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Posts: 21361

United Kingdom 2007 Discovery 3 TDV6 HSE Auto Java BlackDiscovery 3

Quick rev up & down x 2

http://www.disco3.co.uk/gallery/albums/use...v3_Log.pdf

Slower Rev up

http://www.disco3.co.uk/gallery/albums/use...v4_Log.pdf Bodsys Brake Bible

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Post #14384226th Mar 2015 7:00 pm
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Bodsy
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Member Since: 06 Nov 2006
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Posts: 21361

United Kingdom 2007 Discovery 3 TDV6 HSE Auto Java BlackDiscovery 3

d3mad wrote:
Still think its too much beer in the Engel Very Happy



Laughing Laughing Laughing missed that one.
You could well be right!!!! Bodsys Brake Bible

D4/D3 Remote FBH heat kits
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Post #14384256th Mar 2015 7:03 pm
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Robbie
 


Member Since: 05 Feb 2006
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United Kingdom 2013 Discovery 4 3.0 SDV6 HSE Auto Baltic BlueDiscovery 4

Well the fuel pressure really stands out now. Land Rover - Turning Drivers into Mechanics Since 1948

Battery & Quiescent Current Drain Testing

Diagnostics for:
Defender, FL2, D3, D4, Evoque, RRS & FFRR
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Post #14384266th Mar 2015 7:05 pm
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Bodsy
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United Kingdom 2007 Discovery 3 TDV6 HSE Auto Java BlackDiscovery 3

yeah, I thought that when everything else is pointy straight up and down and the fuel pump seems to loose a little bit.

Mikey, can you post your PDF instead of the screenshot? Bodsys Brake Bible

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Post #14384306th Mar 2015 7:09 pm
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Robbie
 


Member Since: 05 Feb 2006
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United Kingdom 2013 Discovery 4 3.0 SDV6 HSE Auto Baltic BlueDiscovery 4

Mikey's graph, but a bit larger.

Looks utterly normal:

Click image to enlarge
 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 #14384366th Mar 2015 7:20 pm
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Bodsy
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United Kingdom 2007 Discovery 3 TDV6 HSE Auto Java BlackDiscovery 3

Evil or Very Mad Evil or Very Mad Evil or Very Mad Evil or Very Mad
just what I could do without Big Cry Big Cry Bodsys Brake Bible

D4/D3 Remote FBH heat kits
BAS Remaps/ EGR Blank
Transmission Flush
Software updates/enabling

Clock/ SNOTM /3Flash / 4x4Info /BT Update /Service Reset/Error Codes / Gearbox Reset
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Post #14384396th Mar 2015 7:23 pm
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Robbie
 


Member Since: 05 Feb 2006
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Posts: 17932

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

Your D3's fuel pressure seems to struggle to get above 600 bar when Mike's cleanly hits 1000 bar, but the fact it appears to be still building pressure on the decay looks quite odd.

I wonder if there is a way of checking the sensor itself? 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 #14384476th Mar 2015 7:31 pm
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Bodsy
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United Kingdom 2007 Discovery 3 TDV6 HSE Auto Java BlackDiscovery 3

whilst driving uphill, it still reaches 175k kpa so it does get up there, but just not smoothly. It's never been mis-fueled so I can rule that out.

But as you say, something amiss with it....

Where is the sensor? An integral part of the HPFP perhaps? Bodsys Brake Bible

D4/D3 Remote FBH heat kits
BAS Remaps/ EGR Blank
Transmission Flush
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Clock/ SNOTM /3Flash / 4x4Info /BT Update /Service Reset/Error Codes / Gearbox Reset
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Post #14384506th Mar 2015 7:37 pm
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Disco_Mikey
 


Member Since: 29 May 2007
Location: Dundee, Scotland
Posts: 20831

Scotland 2005 Discovery 3 TDV6 HSE Auto Cairns BlueDiscovery 3

Pressure sensor on EU3 is on the divertor rail above the HPFP
EU4 is on the NS fuel rail Thumbs Up

Will post up the PDF later/tomorrow Thumbs Up My D3 Build Thread

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Post #14384766th Mar 2015 8:05 pm
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Bodsy
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United Kingdom 2007 Discovery 3 TDV6 HSE Auto Java BlackDiscovery 3

so maybe an issue with the sensor? That would be cheaper & easier....... Bodsys Brake Bible

D4/D3 Remote FBH heat kits
BAS Remaps/ EGR Blank
Transmission Flush
Software updates/enabling

Clock/ SNOTM /3Flash / 4x4Info /BT Update /Service Reset/Error Codes / Gearbox Reset
See It Here  
Post #14384796th Mar 2015 8:07 pm
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Bodsy
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Member Since: 06 Nov 2006
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United Kingdom 2007 Discovery 3 TDV6 HSE Auto Java BlackDiscovery 3

is there a fuel return pressure regulator? Bodsys Brake Bible

D4/D3 Remote FBH heat kits
BAS Remaps/ EGR Blank
Transmission Flush
Software updates/enabling

Clock/ SNOTM /3Flash / 4x4Info /BT Update /Service Reset/Error Codes / Gearbox Reset
See It Here  
Post #14384806th Mar 2015 8:08 pm
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Disco_Mikey
 


Member Since: 29 May 2007
Location: Dundee, Scotland
Posts: 20831

Scotland 2005 Discovery 3 TDV6 HSE Auto Cairns BlueDiscovery 3

Have a spare sensor if you need it to try. Never seen a faulty one though... My D3 Build Thread

TDV8 Retrofit Build Thread  
Post #14384826th Mar 2015 8:08 pm
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anglefire
 


Member Since: 09 Mar 2010
Location: In the Club House
Posts: 4180

England 

There is some sort of pressure regulator- mine was replaced under warranty before the HPFP, which cured my ESF some time ago. Mark.
2006, D3 SE Auto - gone but not forgotten.
2014 BMW 530d M Sport Tourer.
1977 Triumph Spitfire 1500

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Post #14384976th Mar 2015 8:24 pm
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