EGR blanking plate to block off or restrict?

[Anth120playdo Banned Find all posts View Profile Close Anth120playdo]

Hi Anthony,

So many posts on this subject, even different threads, but I have been thinking about this plate and seems to me that if the EGR flow is restricted then that pressure must go somewhere.

Does the plate actually restrict the flow or simply cause it to flow more like a jet of compressed air rather than a breeze which alters the way it mixes with the other air.

If the gunk does not gather in the inlet then it must be burnt, so it is possible that an engine with a plate may actually pollute less than an engine in standard design.

Do you know if anyone has actually tested the exhaust to compare the difference, unlikely I suppose as the plate is so simple to copy that no one could make any money out of it.

Does this different air mix put any pressure on other parts of the motor ? I though maybe it burns hotter or cooler or something.

Hi,

I only post on things I know about, specifically the ones it's seems nobody else does, & when it may help you

The engine will intake whatever it needs to breath. Yes the plate is restricting. It forces the engine to suck clean cold filtered air.
Yes then it's more efficient, & that obviously would reduce overall emissions of hydrocarbons, carbon monoxide, Carbon dioxide - greenhouse gas etc etc, perhaps even nitrogen oxides could be reduced.

No testing that I know of.

Everything it does for the engine is good.
If in doubt, don't do it.

[Poppy Joe Member Find all posts View Profile Close Poppy Joe]

Has the job been done yet and any pics of the job.

[Poppy Joe Member Find all posts View Profile Close Poppy Joe]

well i'm booked in for a full EGR block and clean air diversion. Will post some pictures when complete.

Try again
Have you had the job done yet and any pics

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

sorry mate, yes block went in on tuesday. no alarms yet. i'll try and get some pictures up tonight

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

only prob I was driving home today and a few lights come on. Scan gauge says p0400. Egr position sensor. Is that what every else gets? When I got home I've noticed there is a bit of a flat spot in the hose. I'm hoping I might just have a small restriction

[Anth120playdo Banned Find all posts View Profile Close Anth120playdo]

P0400 Exhaust Gas Recirculation Flow

Target and actual positions of the EGR valve are different
Or
Mass air flow rate is not changed when turning on EGR valve

- EGR valve stuck
- EGR valve does not move smoothly
- E-VRV (for E-EGR)
- VSV (for EGR Cut)
- E-VRV (for E-EGR) circuit
- VSV (for EGR Cut) circuit
- EGR blockage in line between exhaust manifold and intake manifold
- ECM

is what people get with; egr Problems, bad workmanship, full blank or too small hole & sometimes with full blank & Plummer to air box etc etc.

Blank with 7mm hole neat, works well & never an issue.

http://www.ebay.com.au/bhp/blanking-plate

I hope you get it sorted & it works for you.
Please let s know how you go.

Cheers,

####.

[Gordon Member Find all posts View Profile Close Gordon]

Is that electrical tape?

[Anth120playdo Banned Find all posts View Profile Close Anth120playdo]

Is that electrical tape?

It's on the catch can, separate system.

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

yes on the catch can, it's how the kit came

[Early Member Find all posts View Profile Close Early]

If blanking the egr forces the engine to suck in more cold air etc etc making it more efficient and reduce overall emissions, then the whole of the motoring industry is wasting money researching the concept of egr.
Egr is there to reduce nitrous oxide by recirculating some from exhaust to burn it off, and it also helps run the engine a little cooler by reducing combustible oxygen per stroke. There are actual research papers on this and each car manufacturer will do their own independent tests for data on how their engines perform to pass the constantly stricter emissions laws.
The ECU will be programmed to work in conjunction with egr, hence the code.

[Anth120playdo Banned Find all posts View Profile Close Anth120playdo]

If blanking the egr forces the engine to suck in more cold air etc etc making it more efficient and reduce overall emissions, then the whole of the motoring industry is wasting money researching the concept of egr.
Egr is there to reduce nitrous oxide by recirculating some from exhaust to burn it off, and it also helps run the engine a little cooler by reducing combustible oxygen per stroke. There are actual research papers on this and each car manufacturer will do their own independent tests for data on how their engines perform to pass the constantly stricter emissions laws.
The ECU will be programmed to work in conjunction with egr, hence the code.

Yes the blanking plate does force it to suck cold air & run more efficient.
You have to remember the industry is required to meet emissions, it appears with not much concern about your engine longevity.
Your right it is only there to reduce NoX, nothing else! Other pollutants are Increased due to the Inefficient burn.
It only cools the combustion at low combustion temps, for its designed purpose only to lower NoX.
When temps are really hot & egr is closed. It does nothing at all to make the engine run cooler.

I'm not sure why that vehicle has a p0400, plumbing to air box is a great idea, pitty about all the extra piping & any visual roadside check by police could cause issues, but unlikely. Ohhh and the code, but hopefully it can be sorted.
I think it's pulling air from way too close to the maf sensor, & it will be ongoing till the suck is moved away from disturbing the maf operation.

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

It was curious, when the fault came up it was after a period of leaving the car idling and i was doing about 50k's in and around some back streets. It had previously been fine when i was cruising around the 80-100k's which is when i thought the EGR operated.
It was fine on the way to work this morning, about a 20min drive at about 80-100k's

[Anth120playdo Banned Find all posts View Profile Close Anth120playdo]

The egr is constantly changing its position together with the throttle valve.
The only time it's closed 0% is when you accelerating quite moderately eg; load/lod on scan gauge over about 60.
The rest of the time it is constantly variable from 0% to 100%.
Often 30-70% open

[Early Member Find all posts View Profile Close Early]

Plumbing to airbox after blanking seems the best method at the moment. Member Mozz has done a great write-up on his findings here
http://www.pradopoint.com/showthread...uccess-I-think

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

####,
really appreciate your input on this thread mate.
Can I quiz you about the one EGR thread running alongside this one, where Sbclover has removed the throttle plate, which you say is stopping the EGR draw. This sounds like a much easier mod than running clean air from the airbox.
would you recommend one way over the other?
any chance you might be able to fill in on what other function the throttle plate plays, if it can be removed without any other real issues it doesn't seem that important..