Thread: EGR Emulators

Hi Guys.
Anybody heard of these???
See my link,perhaps its best discussed here rather than the vendors area.
http://www.aulro.com/afvb/showthread...84#post2488884
Andrew

The 3.0 compares manifold pressure with MAF values and gets upset if there's mismatch when the EGR valves are supposedly open, even suggesting a problem with EGR. Its the reason why EGR valves can't be blocked on these vehicles.

Hi Landyandy, the set of emulators in the pictures will do all the 2.7 TDV6 Variants and the 3.6 TDV8

The 3.0 D4 has a different plug. It is the same plug as the the Defender Puma EGR.
I have EGR Emulators for the D4 3.0 that have been tested I am just waiting on Plugs to release them to everyone.

Hi Graeme, you are exactly right.

I have been testing D4 emulators for some time now and I have a set with a link harness that connects into the Maf.


It keeps the the system happy and the EGR's can be capped off. They run great with no problems at all. I am just waiting on plugs to release them to everyone.

The current emulators will run all the 2.7 TDV6 Variants (D3,D4,RRS)
and also the 3.6 TDV8 RRS

The D4 3.0 has different plugs. They are the same as the Defender Puma.
There is also an extra calibration step to be taken care of in the computer. It calibrates min and max valve values.

The 3.0 ones will be available shortly.

(Going off on a tangent)
I started the idea of the emulators about 3 years ago and one thing i was lead to believe was that the IMT (Inlet manifold tuning valve) or butterfly closed when the EGR's are open to restrict incoming air and only draw on the exhaust gas.

What i have found in testing is that the IMT rarely moves from about 12% open, even when the EGR valves are fully open, and instead causes a mixing of the gas, a bit like a swirl valve.

The engine always seems quieter at idle. it just sounds nicer. I think this is due to the fact that at idle the valves are open to about 85-95% and then work their way back to closed.

I have tested the warm up strategy over and over again and it is a minimal amount of time extra on the warm up without the valves.

I have also tested the DPF regeneration on the 3.0 and whilst the EGR's are open when you start the regen process on the computer it is purely for warm up. Whilst driving, the PCM will only carry out a regen when the engine is above the set regen temp.

Hi mate do you intend doing one for the 2.4 and 2.2 puma? Can you pm me an approx price?

Jc ☺

I did do one for the 2.2 and 2.4 but the biggest problem i had was the plugs. They are so hard to get hold off. I used a small pcb board with pins attached to interface the plug.

What i ended up doing was trawling through all the PCM files and comparing them to ones that I had done the EGR update to with SDD and Autologic

I could then work out which part of the file operated the EGR.
I deleted the EGR info and got a result. It took ages to find all the right bytes. The lads in the workshop would laugh at me and shout "6 months and still trying to delete that crap"

It worked in the end though. It was a welcome sound to be able to turn the engine off and not hear that horrible screech as the EGR self cleans.

I like the sound of what you seem to have achieved but wonder what the effect of the link to the MAF might do especially if it results in changes to fuelling. Can you elaborate?

Combustion noise at idle should be greater with EGR disabled which seems at odds with your report of a quieter engine but I have no experience with noise changes from less interference with airflow by the inlet butterfly.

My old 3.0 D4 is still in the family, a brother has a 3.6 RRS and I have a 4.4 TDV8 RRV so I am very interested in your product. Have you done any research on the 4.4 TDV8, which has 1 EGR valve but 2 MAFs like the 3.0? The 4.4 is the V8 equivalent of the 3.0 V6 with a primary and a secondary turbo. I haven't attempted to discover if the 4.4 uses the same EGR connector as the 3.0 but as the 4.4's EGR valve is totally different to the 3.0, its unlikely to be the same.

Originally Posted by LandyAndy

Hi Guys.
Anybody heard of these???
See my link,perhaps its best discussed here rather than the vendors area.
http://www.aulro.com/afvb/showthread...84#post2488884
Andrew

Have a look at Bell Auto Services website in the UK , also ( Disco 3 UK ) has a lot of info on emulators , not sure if they are the same as described here in the link though , ie no remap etc .