EGR blanking plate to block off or restrict?

[MacroP Member Find all posts View Profile Close MacroP]

Hey
I'm about to do the EGR blank install on our 2012 Prado 150 and according to the guy I bought the blank off it sits between the cooler and the head and not directly below the EGR valve as I initially thought is this correct?
Thanks
Jacques

Yep he's right. You mount it at the front of the engine.

[Anth120playdo Banned Find all posts View Profile Close Anth120playdo]

A note from denso common rail service manual:

7.2 E-EGR System (Electric-Exhaust Gas Recirculation) (1) GeneralDescription
• The E-EGR system is an electronically controlled EGR system. The EGR system recirculates a portion of the exhaust gases into the intake manifold in order to lower the combustion chamber temperature and reduce NOx emissions.

However, operation of the EGR system may reduce engine power output and affect drivability. For this reason, in the E-EGR system, the engine ECU controls the EGR to achieve an optimal EGR amount.

[photoprado Avid PP Poster! Find all posts View Profile Close photoprado]

The EGR system recirculates a portion of the exhaust gases into the intake manifold in order to lower the combustion chamber temperature and reduce NOx emissions.

Ok. How does exhaust gas via the EGR lower combustion chamber temperature? I thought exhaust gases are hot...

Putting in the restrictor plate installs a maximum level of EGR without eliminating it completely, so there would be some EGR effect remaining. Have you ever tested the NOX results with the plate installed compared to standard?

[Anth120playdo Banned Find all posts View Profile Close Anth120playdo]

Ok. How does exhaust gas via the EGR lower combustion chamber temperature? I thought exhaust gases are hot...

Putting in the restrictor plate installs a maximum level of EGR without eliminating it completely, so there would be some EGR effect remaining. Have you ever tested the NOX results with the plate installed compared to standard?

It dilutes the oxygen.

You are correct.
No.
However basic calculations Indicate there is still enough inert gasses to cool the combustion.

[Whitey Shockie Maker of the Month Award Find all posts View Profile Close Whitey]

It dilutes the oxygen.

You are correct.
No.
However basic calculations Indicate there is still enough inert gasses to cool the combustion.

Hey #### and Photoprado,

I raised a similar question about possible NOx emissions increasing with EGR reduction a while back.

My opinion is any increase of NOx by throttling the EGR is irrelevant anyway.

There is evidence about diesels with EGR systems that suggests they no longer meet NOx emissions standards once the engines have run in and loosened up. Manufacturers are well aware of this, and there are plans in place to restrict the lifetime of diesel engines on this basis.

This of course means forcing people to buy a new diesel vehicle more frequently in the never ending quest to make a buck!

Best

Mark

[photoprado Avid PP Poster! Find all posts View Profile Close photoprado]

If we all install this device, and it impacts NOX emissions, we would basically be doing something like what VW did. It would be a cheat device.

NOX is a significant issue. https://www.testoaus.com.au/blog/gas...ns--video-_314

Why should you care about NOx emissions?

Burning fossil fuels, including heavier fuels like diesel, produce lot of toxic gases such as nitric oxide & nitrogen dioxide, which together form the components of NOX. This is why governments enforce regulations to control emission levels.

Authorities pay close attention to these substances, because some of them are quite harmful to the environment and to health. Nitrogen dioxide is a respiratory toxin, and the US Environmental Protection Agency has identified a link between nitrogen dioxide exposure and hospital emergency visits.

As for the environment, nitrogen dioxide, in conjunction with sunlight, contributes to the development of the ozone. In addition, nitrogen dioxide can impair visibility and lead to eutrophication. Eutrophication occurs when aquatic algae populations grow exponentially, which decreases oxygen in water bodies. Additionally, NOX has a detrimental effect on polymeric material such as rubbers & plastics.

Don't get me wrong, I'm not saying it IS a cheat device

Clearly there are great advantage for the device in terms of engine life. How can we get the NOX tested?

[rackxp Junior Member Find all posts View Profile Close rackxp]

Hey guys,

Can anyone point me in the direction of someone in Sydney who can preform this for me?

[Anth120playdo Banned Find all posts View Profile Close Anth120playdo]

Hey #### and Photoprado,

I raised a similar question about possible NOx emissions increasing with EGR reduction a while back.

My opinion is any increase of NOx by throttling the EGR is irrelevant anyway.

There is evidence about diesels with EGR systems that suggests they no longer meet NOx emissions standards once the engines have run in and loosened up. Manufacturers are well aware of this, and there are plans in place to restrict the lifetime of diesel engines on this basis.

This of course means forcing people to buy a new diesel vehicle more frequently in the never ending quest to make a buck!

Best

Mark

Exactly!

So lets reduce all other emissions
Including



Cleaner oil,
Longer lasting oil,
Better fuel economy,
Longer lasting engines,
Etc etc.....
Here we go agian blah Blah blah......

[photoprado Avid PP Poster! Find all posts View Profile Close photoprado]

Exactly!

So lets reduce all other emissions
Including



Cleaner oil,
Longer lasting oil,
Better fuel economy,
Longer lasting engines,
Etc etc.....
Here we go agian blah Blah blah......

Clearly there are great advantage for the device in terms of engine life. How can we get the NOX tested?

[Anth120playdo Banned Find all posts View Profile Close Anth120playdo]

I don't know that one.
But get it tested before, because I'm told they fail.
If it passes before plate, imo it will pass after, because its an idle test, & at idle there is the highest percentage of inert gasses, still about 20%.

Volkswagen were really good. They did what they did for a damn good reason & I support. If people had it reversed, they are crazy. Sooooooootcake engine killer. Egr is a good idea for petrol engines, not diesels.

[photoprado Avid PP Poster! Find all posts View Profile Close photoprado]

I don't know that one.
But get it tested before, because I'm told they fail.
If it passes before plate, imo it will pass after, because its an idle test, & at idle there is the highest percentage of inert gasses, still about 20%.

Volkswagen were really good. They did what they did for a damn good reason & I support. If people had it reversed, they are crazy. Sooooooootcake engine killer. Egr is a good idea for petrol engines, not diesels.

Getting it tested with and without the plate would be the only plan.

VW has been found out. They have been cheating and they are millions down the drain as a result. Probably billions. Fraud is never a good idea and there is no good reason for fraud.

Where do we get it tested? Surely there is somewhere that can test a prado for emissions?

[Hally Senior Member Find all posts View Profile Close Hally]

Try your transport department.
But i would suggest not as if it is above set levels your vehicle would be grounded could opeb a huge can of worms

[photoprado Avid PP Poster! Find all posts View Profile Close photoprado]

No, we want to test it, not can it.

Taking it to the bureaucracy would be a big mistake.

[Mack Lurker Find all posts View Profile Close Mack]

I have been attempting to clean my egr but am not able to remove the nuts and bolts securing it, can someone let me know the trick?
I have searched the net and watched lots of youtibe clips but still have not been able to work out what I'm doing wrong. I can remove the valve and hoses but cannot get the elbow off. I am not able to slide it off the retaining bolts due to a big chunk of metal, bolted to the engine block, preventing it coming off.
Do i need to complete disassemble the engine or is there a special tool that is needed to access bolts?
Any help would be great as I have been attempting to clean the egr for weeks now.

[Anth120playdo Banned Find all posts View Profile Close Anth120playdo]

I have been attempting to clean my egr but am not able to remove the nuts and bolts securing it, can someone let me know the trick?
I have searched the net and watched lots of youtibe clips but still have not been able to work out what I'm doing wrong. I can remove the valve and hoses but cannot get the elbow off. I am not able to slide it off the retaining bolts due to a big chunk of metal, bolted to the engine block, preventing it coming off.
Do i need to complete disassemble the engine or is there a special tool that is needed to access bolts?
Any help would be great as I have been attempting to clean the egr for weeks now.

Yeah the truth is, it's not a 10 minute job like some false forum talk would lead you to believe.

Please email me your details & number & I will call you & talk you through it. Free.
Prado #################### (no space).