Blocking the EGR Valve

[YNOT]

Sounds like a lot of positives, but are there any known negatives?????

Only if you get caught with it blocked! I'm yet to hear of anyone who has been caught.

Tony

[Chaz]

Sounds like a lot of positives, but are there any known negatives?????

Nothing too serous in the way of negatives.

The Di will boost a bit higher and needs to have boost adjusted so not to have limp mode on full throttle. The CRD has better control over boost, but does sense pressure on either side of the EGR valve and will give a fault light and code when it sees a pressure differential. The answer is to drill a very small hole in the blocking plate to equalize the pressure and restrict EGR flow, or fit a Scangauge-II to clear the fault code each time it comes on.

That's it apart from what Tony has mentioned. The positives far outweigh the negatives.

[RustyNails]

Well I have had the shim in for a while now.
My experiences are

• Fuel consumption is down slightly
• Definately more power (especially noticeable when towing so assume this means more torque rather than power) and keeps pulling to well over 3000RPM (whereas before at 3000RPM it just used to cough and spit a cloud of black smoke)
• Less turbo lag (due turbo spooling earlier) equating to a much smoother power delivery = much nicer to drive
• Less black smoke (still have blue smoke though)

And all this from a simple mod and a $25 part
Now I just have to give the two stroke a go

[philmar]

I am in the process of making the egr plate, but I am concerned about installing it without having boost control as a mention of overboosting can be a result of blocking the egr off. Is it safe without this control?
Also reference is made to CRD's and having to allow partial flow. Which models are CRD? Mine is GU111 2002. (what is crd?)
What and where is the butterfly plate? And what are the benefits of modding this, and what is the actual mod?
Reading through all these posts is great fellas, it's like going back to school again.
Thinking about that, school was a bitch, this is much better.

[YNOT]

There is an adjustment on the turbo (the VNT - variable nozzle turbo actuator rod) the can be used to limit turbo boost but I have never done this so can't explain how to do it. Do you have a boost gauge? I would not be blocking the EGR until you have a boost gauge.

2002 GUIII has the DI (direct injection) motor. CRD (common rail diesel) did not come out till later.

The butterfly plate is in something like a throttle body that sits over the rocker cover and is bolted to the inlt manifold. I have not modified the butterfly plate on mine but I did remove it and clean it. Chaz will be more help here.

Tony

[nowoolies]

Hi Guys, If I happen to punch out a bunch of EGR blocking plates that slide in as described in the post above, would anyone be interested?,
cheers The Ferret.

count me in mate how much $$$$$$
nowoolies
Paul

[GUte]

Does anyone know if this is part of the egr on my td42ti?
Its below the intercooler going into the manifold, tried finding where the other end of the pipe came from but lose it behind the engine

[YNOT]

That is th EGR actuator. The other end of the pipe should go into the exhaust manifold.

Tony

[thin on top]

Hey guys, Dam I wish had looked at this site before I bought my GU2.8Ti. I would have still bought but have learnt so much for reading here. You never know one day I may even be able to contribute.

[YNOT]

Feel free to contribute at any time, even if it's just in general banter. When you get a minute drop by the introductions section and tell us a bit about yourself and your Patrol.

Tony