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47p2



Member Since: 05 Oct 2010
Location: Gone Beyond, Subaru
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Scotland 
EGR

So I know I have an EGR fault, but I don't know what is causing it. It could be either mechanical or electrical.

I'm going to remove the EGR this afternoon and give it a clean to see if it makes any difference.


Can anyone here with year 2002 TD6 knowledge tell me if these engines were fitted with swirl flaps on the manifold please.

Post #31605 13th Oct 2010 2:07pm
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47p2



Member Since: 05 Oct 2010
Location: Gone Beyond, Subaru
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Scotland 

Ok so I can confirm there are no swirl flaps on a 2002 TD6. That is good news because they can break off and cause major damage.

I removed the EFG valve and inlet manifold and gave them a clean out, to my surprise they weren't that bad, certainly not choked up. I wonder if it's an electrical problem with the EGR Shocked

Post #31658 13th Oct 2010 9:31pm
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arron



Member Since: 22 Sep 2010
Location: lincolnshire
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United Kingdom 2005 Range Rover Vogue Td6 Java Black

your not going to bother putting that back on surely, get one of the throttle bodys of ebay that does away with it. theres no elecrical input on the egr so no ill effect from scrapping the waste of time, i took mine off 6 months ago and all is sweet in the td6 front.

Post #31677 14th Oct 2010 1:08am
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47p2



Member Since: 05 Oct 2010
Location: Gone Beyond, Subaru
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Scotland 

Thanks for the input aaron, does it not show up any faults on the computer when you blank it off

Post #31679 14th Oct 2010 6:58am
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arron



Member Since: 22 Sep 2010
Location: lincolnshire
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United Kingdom 2005 Range Rover Vogue Td6 Java Black

no faults show at all, not even on a scanner when you plug it in. happy days really, i was worried about that but it turns out our worrys are invain. i done away withmine ages ago now and never had a problem since.

Post #31816 15th Oct 2010 12:28am
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nbunney



Member Since: 10 Aug 2008
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Arron

Do you have a link for the throttle bodies?

Post #31826 15th Oct 2010 8:44am
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47p2



Member Since: 05 Oct 2010
Location: Gone Beyond, Subaru
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WHat happens with the vacuum pipe when you fit the new blanking plate, also what happens to the small pipe that goes to the exhaust?

Post #31940 15th Oct 2010 8:50pm
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David



Member Since: 15 Oct 2010
Location: Murcia
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Spain 2007 Range Rover Vogue SE TDV8 Zermatt Silver

Excuse my ignorance, what is a EGR and is there one a a TDV8 ?

Post #31950 15th Oct 2010 9:26pm
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Tim in Scotland



Member Since: 25 Mar 2007
Location: Somewhere between here and there, if not then I'm all at sea or at home in Scotland
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2010 Range Rover Vogue TDV8 Stornoway Grey

Exhaust Gas Recirculating Valve - TDv8 has 2, one on each turbo/exhaust system, it's all to do with emissions control, white man's magic 2018 Mini Countryman Cooper S E All4 PHEV in Melting Silver - it’s whisper quiet in EV and polluter modes

Post #31952 15th Oct 2010 9:27pm
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arron



Member Since: 22 Sep 2010
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United Kingdom 2005 Range Rover Vogue Td6 Java Black

here you go guys,
http://cgi.ebay.co.uk/BMW-EGR-AGR-Diesel-S...35acd09a09
all the pipes still attach if you want them in there still, i took mine out and made blanking plates to go on the exhaust manifold so i could get rid of the pipe work and tidey things up a little, the vacume pipe i did put on the blank on the new body because getting to the end and capping it proved to be a pain in the rear so i left it in place.

Post #31965 16th Oct 2010 12:26am
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47p2



Member Since: 05 Oct 2010
Location: Gone Beyond, Subaru
Posts: 8048

Scotland 

Thanks for the link aaron Thumbs Up

Post #31978 16th Oct 2010 9:59am
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David



Member Since: 15 Oct 2010
Location: Murcia
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Spain 2007 Range Rover Vogue SE TDV8 Zermatt Silver

Tim in Scotland wrote:
Exhaust Gas Recirculating Valve - TDv8 has 2, one on each turbo/exhaust system, it's all to do with emissions control, white man's magic


So it actaully isnt that big a deal ? Can you still drive witha faulty one ?

Post #32080 17th Oct 2010 11:05am
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Tim in Scotland



Member Since: 25 Mar 2007
Location: Somewhere between here and there, if not then I'm all at sea or at home in Scotland
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2010 Range Rover Vogue TDV8 Stornoway Grey

You could but you may make an awful lot of black smoke out the back - enough to attract the attention of the police, also you could well ruin the catalytic converters and emissions control electronics. You could easily get it removed and the hole in the manifold banked off too. I had it done to my TDi300 engined Defender and it liberated a few extra horses and made the engine run smoother (if that is possible with a Defender!) at the same time I had the electronics associated with it removed on advice of the non-franchised specialist who did the work. 2018 Mini Countryman Cooper S E All4 PHEV in Melting Silver - it’s whisper quiet in EV and polluter modes

Post #32086 17th Oct 2010 11:25am
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fisha



Member Since: 25 Sep 2009
Location: Scotland
Posts: 1261

2015 Range Rover Autobiography SDV8 Aruba

Quote:
Excuse my ignorance, what is a EGR and is there one a a TDV8 ?


As already said, there will be one on each bank of the V8.

Its basically an emissions control system. Essentially, what it does is that it takes some of the burnt gases that are going down the exhaust pipe and re-routes them back into the inlet of the engine, with a view to ensuring that any fuel that wasn't burnt on the first attempt, does get burnt on the second attempt.

This recycling of the exhaust gas doesn't happen all the time. There is a computer controlled valve which which opens and closes the the loopback of the gas into the inlet, and it'll only open under certain engine conditions ... depending on throttle position, engine revs and engine temp etc etc. ( IIRC on a 300tdi defender, it was found that the EGR only really worked for a small proportion of the time . . . it was something like only during medium temp and medium throttle ... if the engine was stone cold, or fully warm, the EGR barely opened ... making the whole thing pretty pointless ... i may be wrong in my recollection though )

Does it drastically reduce emissions? Probably only in certain circumstances. Remember, you also have the cat converter which reduces emissions as well.

Would disabling it create black plumes of smoke. I doubt it. To me, plumes of black smoke is primarily the result of the fuel map and fuel delivery ... black smoke coming from over-fuelling.

My experience from messing around with the EGR and fuel delivery on a 300tdi is as above. Disabling the EGR made no noticeable difference to smoke output, nor any appreciable difference in engine smoothness. Smoke was a direct result of twiddling with the fuel injector settings on the engine.

Nowadays with the modern engines, the fuel delivery is measured accurately ... so the system will deliver fuel to the actual amount of air going into the engine ( irrespective of whether the EGR valve is open or not ).

I would imagine though that the system would know if the valve had simply been disconnected, and as such may throw an error. To me, the solution is a blanking plate that simply stops the flow of gas through the pipe, but still allows the valve to open and close ... thus keeping the system happy. V8 or else ...

Post #32522 20th Oct 2010 10:28am
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RRRob



Member Since: 24 Jul 2010
Location: Bury
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United Kingdom 2004 Range Rover Vogue Td6 Cairns Blue

Carrying on an existing thread rather than create a new one ( I used the search function Mr. Green )

I replaced my intercooler this morning and whilst I had the fan off etc I thought I would take the EGR Valve off for a look see.
It was really heavily covered in soot and gunge so I have cleaned it up.
My question is:- can you tell if all is ok when its off the vehicle ? Should the valve bit in the center of the body slide back and forth ? 

Click image to enlarge

Post #68253 12th Jun 2011 12:51pm
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