Blocking the EGR Valve

[quicksand500]

So my guess is that solenoid and EGR 'related' butterfly valve per photos is not directly part of the porting of exhaust gasses from the exhaust manifold to the intake or inline on that system. But it's there. and plumed into somthing. I'm guessing exhaust post turbo to aid in ensuring EGs are recirculated and forced to by the part closure of the exhaust system?

[quicksand500]

So its for closing the main exhaust for forcing EGR... 77325

[mudski]

So its for closing the main exhaust for forcing EGR... 77325

what you are looking at here mate is not what is on your Patrol. The pics I uploaded above are. What you have highlight looks like an exhaust brake setup.

[mudski]

So my guess is that solenoid and EGR 'related' butterfly valve per photos is not directly part of the porting of exhaust gasses from the exhaust manifold to the intake or inline on that system. But it's there. and plumed into somthing. I'm guessing exhaust post turbo to aid in ensuring EGs are recirculated and forced to by the part closure of the exhaust system?

Look at the two pics I put up. The top is the butterfly thingo I mentioned, showing the diaphragm, the second is the EGR system, From the pipe post exhaust, around the back of the motor to the EGR cooler, and then the EGR valve at the front.

[quicksand500]

Yeah I understand the differences in the setups per your pics. Only that per my ACTUAL photo i posted of the diaphragm, this exhaust butterfly is part of my emissions system, that functions via the solenoid also in photo. I thought it was plumbed directly inline with the the porting of EX gasses in the EGR system and could be disabled in lieu of blanking plates. Turns out this is just as bad and forces gasses to be recirculated many times over while the main exhaust is cut.

Guessing i'll be placing EGR blanking plates as well as disabling or removing the exhaust butterly parts!

[mudski]

Yeah I understand the differences in the setups per your pics. Only that per my ACTUAL photo i posted of the diaphragm, this exhaust butterfly is part of my emissions system, that functions via the solenoid also in photo. I thought it was plumbed directly inline with the the porting of EX gasses in the EGR system and could be disabled in lieu of blanking plates. Turns out this is just as bad and forces gasses to be recirculated many times over while the main exhaust is cut.

Guessing i'll be placing EGR blanking plates as well as disabling or removing the exhaust butterly parts!

Up to you, but you will be wasting your time removing the exhaust butterfly parts on a CRD. Or A Di for the matter. Its a total intake removal job. And the benefits you may think you will gain by doing this, wont be so. Been there,done that...
Blocking the EGR, as said, is a five minute job. If you've got time on your hands, go for it, might as well give the manifold a good clean out too while your there.

[quicksand500]

Yeah I just went out to grab some pics but can't see the damn thing, plus is well over 40C here so will try later.

I have the plates for both ends for blocking EGR off. Will do that first then. Keep hearing about inconsistent boost control thereafter and needing daws valve. And throwing engine codes to keep resetting?

The diaphragm I can see the vacuum lines going to is waaaaay down behind the block. Are you sure that will require the complete intake removed?77326

[Mel77]

Hi guys, I'm in need of some help. I'm trying to block off the EGR, but not sure where it is all located... yeah ok may seem a silly question to some... bit its driving me insane please help....

[0-TJ-0]

Hi guys, I'm in need of some help. I'm trying to block off the EGR, but not sure where it is all located... yeah ok may seem a silly question to some... bit its driving me insane please help....

There's no silly questions just silly.. oh.. never mind. Head over and post an introduction. Then come back and read this thread from the start. If you've still got questions after that I'm sure some of these knowledgeable folk will help you out.

[Stump2jz]

So ive gone through most of this thread. And i see majority use the plate to block the egr. So i did some searching around and i stumbled across this. Has anyone used this on a crd30 engine?? Ive got a 2010 dx patrol ute and i was wondering if it would be any good??

https://www.dieselsmart.shop/product-page/nissan-patrol-crd-commonrail-full-egr-delete

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[mudski]

So ive gone through most of this thread. And i see majority use the plate to block the egr. So i did some searching around and i stumbled across this. Has anyone used this on a crd30 engine?? Ive got a 2010 dx patrol ute and i was wondering if it would be any good??

https://www.dieselsmart.shop/product-page/nissan-patrol-crd-commonrail-full-egr-delete

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Yeah you could use it but I would just block the EGR and if the engine light does come on, which it doesn't always happen with the CRD's, then good. If it does, then get this kit.

[Stump2jz]

So ive had a few spare moments to look at doing my egr block today before heading of to a job and ive notice a few things. Ive noticed some gasket crap and what looks to be a new gasket sticking out from the egr pipe on the intake side and a yellow pen mark on the vnt thingy on the side of the turbo. Im wondering, could my egr be already done and it has been adjusted to suit via the turbo? I still plan to pull it apart and see whats what but. Any thoughts?http://www.nissanpatrol.com.au/forums/images/imported/2019/10/2.jpghttp://www.nissanpatrol.com.au/forums/images/imported/2019/10/3.jpg

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[Bidja]

Stump2jz have not got my vehicle at the moment but that plate is most likely a gasket but can't say for certain unless removed. May have had a split EGR pipe running behind engine to exhaust manifold. Best to block EGR at both exhaust and inlet manifold.

The yellow mark on actuator rod is the witness/position mark for correct adjustment from factory of VNT actuator rod, eg: vacuum required to lift actuator rod so the lever (the bottom plate in pic), lifts to hit the grubscrew/stop which controls the turbo exhaust wheel vane operation. Do not change it unless you really know what you are doing.

[Bidja]

Your compressor wheel housing (turbo inlet) appears to have a lot of oil smear, check the hose clamp and inlet elbow bolts. Get yourself a catch can in you do not have one.

[Stump2jz]

Thanks for the feedback guys. Have a catch can fitted, just got to do the egr block now. Will probably do it at the manifold as i will be doing a 3 inch stainless exhaust asap.

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[CarrB]

Hi Timbo,
I am new to nissanpatrol.com.au, and am the owner of a 2003 GU 3 litre patrol.
I recently had the inlet manifold removed and cleaned as the old girl had lost heaps of power. This then prompted me to looking into blanking off or removing the erv.
Your post is so helpful, and I will be getting a plate made and fitting it myself.
Just one question - once plate is fitted at the inlet manifold end, is there any additional requirement for oil catch pot or computer re programming ?

[Niftyjk]

I see Timbo's post of 2010 re blocking off the EGR.

Son has just brought at 2001 Nissan Patrol. Since 2010 has anybody done as Timbo post and were there any issues. For example after blocking off did any sensors play up or engine faults appear.

Thanks advance.