Does a 2012 4.4tdi only have one EGR valve?

As far as I can see yes, just the one. Why  Cheers
Richard

(there are no such things as an ordinary FullFat, an ordinary cat or too many tools)
2011 TDV8 Vogue Santorini Black
Gap IIDBT

Definitely only 1 EGR valve, with the exhaust feed from about the middle of the cross-over pipe.

Was scanning through the blanking plates on e.bay and noticed that for a late l322 they only offer a single plate. When I had an earlier Disco it was all the rage to blank them off but they had two.

Was scanning through the blanking plates on e.bay and noticed that for a late l322 they only offer a single plate. When I had an earlier Disco it was all the rage to blank them off but they had two.

Looking at the comments about blanking off the EGR on 11MYs, I think it's not possible with them as its part of the system required for emission control etc. to meet the requirements brought in. Removing the EGR bits will make the FF fail the MOT.

Do a search and you may find lots of information from others more in the loop than me  Cheers
Richard

(there are no such things as an ordinary FullFat, an ordinary cat or too many tools)
2011 TDV8 Vogue Santorini Black
Gap IIDBT

If be more concerned about the role EGRs play in the DPF cycle. I thought they were essential to the regen function? Without a functioning EGR I think the DPF will simply soot up. 2016 Skoda Octavia VRS Estate
<gone>2009 FF Vogue TDV8 Buckingham Blue</gone>
<gone>2015 BMW 520D SE (not my favourite car)</gone>
<gone>2009 D3 HSE Galway Green</gone>

(They are required for the MoT but practically speaking it's not possible for the tester to tell they've been blanked} 2016 Skoda Octavia VRS Estate
<gone>2009 FF Vogue TDV8 Buckingham Blue</gone>
<gone>2015 BMW 520D SE (not my favourite car)</gone>
<gone>2009 D3 HSE Galway Green</gone>

During DPF re-gens the EGR valve is closed to ensure that the correct amount of unburnt fuel and oxygen goes to the catalytic converter for it to produce enough heat for the DPF to do the regen. However I don't know if a blocked EGR valve might contribute to excessive particulates being produced which might therefore cause the DPF to clog more quickly.

My remap chap said I have a fault code for the EGR, it does not show up on the dash, he has turned the EGR off in the map and I have inserted a blank. He assures me he has does this numerous times and it has never affect the DPF. He will come and turn the ERG back on if I decide to replace the faulty EGR. Time will tell, I intend to use the car for a lot of short journeys and try to bring the DPF light into play, then Italian tune it to see if it will clear.

Mike, Graeme,

I agree with you both on your posts. Probably me not being clear enough.

Cavalier,

IIRC the EGR assists on reducing the NOx emissions and it will be interesting to see if your EGR being turned off affects the emissions level at your next MOT, assuming you leave it off. Would it be worth it to have the emissions tested by a "friendly" tester, perhaps you could update this thread then? Cheers
Richard

(there are no such things as an ordinary FullFat, an ordinary cat or too many tools)
2011 TDV8 Vogue Santorini Black
Gap IIDBT

I dought it will fail on emissions as the engine will be running cleaner, I believe people with a smokey car have blanked their EGRs to get their car through the MOT.

My understanding is the 4.4 tdv8 with the DPF cannot have EGRs blanked....? Gone to a good home: 2011 4.4 TDV8 Vogue SE Buckingham Blue with Ivory and clear glass = "Rory"
2025MY Defender D350 90 in Silicon Silver on coils
1974 Series 3 Lightweight = "Millie"
Many, many other Landies over the years
My preferred specialist: www.glenrands.co.uk
--------------------------------------------------

When i had my 4.4 tdv8 remapped i was offered to have the EGR turned off. I didn't as i have haven't heard of problems with EGR on the 4.4. 2015 4.4 AB
GSXR 1000 K5
R1 1998

rjff wrote:

Mike, Graeme,

I agree with you both on your posts. Probably me not being clear enough.

Cavalier,

IIRC the EGR assists on reducing the NOx emissions and it will be interesting to see if your EGR being turned off affects the emissions level at your next M you leave it off. Would it be worth it to have the emissions tested by a "friendly" tester, perhaps you could update this thread then?

Took the car to a MOT station yesterday to have the emissions tested, results below:

He tells me they are as good a result as you can get. ie

I am taking my car to see my Indy next, I will have covered about 300 mixed miles by then, he is going to check out the system for any error codes.