No nor would I, It does not have that effect, its not the engine temp that is manipulated its something from the Maf. There are reams of info on this mod and that was one of the 1st things I wanted to check. 2007 TDV8 VSE
2003 TD6 gone.
2002 P38a gone
1999 P38a gone
1997 p38a gone
1993 VSE gone
1992 VSE gone
1966 Series 2a with V8 conversion gone

Webbie wrote:

Superchips won’t remap a 4.4TDV8. When asked why not the response was “performance could not be improved without compromising reliability on this engine”.

wayneg wrote:

Just a thought, I was asked by a friend to investigate an egr delete on a 2014 Pajero and found a mod online which I was able to complete for next to nothing. It was just a resistor to trick the engine ecu that the intake was cold even when the car was up to temp. This had the effect of never allowing the electric valve egr to open...

Well as I said, Just a thought. This is well beyond my level of understanding. 2007 TDV8 VSE
2003 TD6 gone.
2002 P38a gone
1999 P38a gone
1997 p38a gone
1993 VSE gone
1992 VSE gone
1966 Series 2a with V8 conversion gone

The engines not only sense the throttle valve position and the Egr position but also the pressures in each of the ducts. When it changes the valves it looks for corresponding pressure changes too. Simply blanking the pipe prevents those pressure changes and so the system knows something isn’t right.

Writing that out in a remap I don’t imagine would be easy. V8 or else ...

Have you seen this chap he owns a tune company he’s done dpf and egr delete?

Click image to enlarge

I found that I can get "dynamic EGR" remapping done locally. My understanding is that it allows EGR for engine warm-up only, although even that is still going to cause lots of carbon build-up.

Graeme
Would a ProVent or similar catch can be of benefit in this situation ?

Laurie

I have no experience with Provents and similar devices but less oil in the inlet tract is likely an improvement. However judging by the improved low rev throttle response of a previous TD5 D2 when its EGR was disabled and the very short blanked EGR test on this car, I'd still like to put an end to EGR in which case a Provent becomes a wasted investment, although the $700 EGR remap fee is significant.

EGRs can have some bad impact on our cars / engines: soot
But they are also designed to reduce NOx emissions AND to decreases engine temperature I read now.

The more the EGR valve opens the cooler the engine gets.
This is why the EGR-valve is almost fully closed at cold start and then opens wider when the engine is getting hot.
This is what I also observe see with the IID tool.


I was going to look for a EGR map out and blanking kit for my TDV8 4.4 (which for sure would help in the 75% city traffic to reduce soot).

But I am not sure if this is still good when driving a long highway-distance threetimes a year.

Can the missing "temperature decreasing function" of EGRs recirculated exhaust gases be balanced by the primary engine cooling system?


So, if somebody has experiene here with his/her TDV8 4.4.....


.

btw:
I suppose the TDV8 3.6 blanking kits are not applicable for the 4.4 (I think the 4.4 has only 1 EGR valve whilst the 3.6 has 2 EGR valves ?)

And I would appretiate once more if you list your source for EGR-delete for the 4.4 and the blanking kit.
I have fpound so many for the 3.6 but not for the 4.4

A guy here posted who has done an EGR delete on a 4.4TDV8.
I remember reading about it and he said it passed annual MOT emissions testing too.
Have a search flash.

The well-known EGR sensor fault is something I've spent a lot of time on and having fixed mine, I've not noticed any real improvement. I'm talking about the sensor in the exhaust manifold. However recently I am noticing that motorway driving seems to manage minor (i.e. passive) DPF regeneration very well, perhaps better than before I fixed the sensor.

Without writing a long post, I am thinking that fine temperature management for the purposes of DPF regeneration, especially passive regeneration is better maintained with a working EGR.

Passive regeneration is 300-400 degree range that happens before 19grams of soot. After 19grams the ECU calls for a full, more aggressive 600 degree regeneration.
.
.
. Cheers, Greg
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
2011 Vogue SE 4.4 with lots of toys in Stornaway

flashgordon wrote:

Can the missing "temperature decreasing function" of EGRs recirculated exhaust gases be balanced by the primary engine cooling system?

The lowered combustion temperature is at idle or light throttle in order to lower noxious gas production that occurs when combustion temperatures are high, not when the engine is working hard at which time the EGR valve is kept closed yet the cooling system is able to do a good job. High low-load combustion temperatures are very cool for the engine overall compared with when the engine is working hard.

Durham Remaps can remove both for £595 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
--------------------------------------------------