ozzyboydeano
Well-Known Member
good for you mate
but i am still unsure how this relates to deleting some parts of the EGR system
but i am still unsure how this relates to deleting some parts of the EGR system
ozzyboydeano
Well-Known Member
no expert mate i learn new things every dayWammers,you do realise you are being "educated" by the world's leading expert on diesel engine theory and practice...
this is a simple basic EGR system
any one can can quote from a manual
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ozzyboydeano
Well-Known Member
remember the fuel system can be also tricked electronically and mechanically for example i have LPG installed
sierrafery
Well-Known Member
You mention looking at the web. I don't need to look at the web to know what i am talking about and some of the stuff on the web is bollocks. But there are people who don't have a bloody clue that take is a reality. The MAF situation was an illustration of that crap.
.....
But it isn't it is impossible to do that. You don't have a clue.
ozzyboydeano
Well-Known Member
this forum is on the web just saying
back on topic
since you know what your talking about so please educate
if it was that easy why wouldn't we just unplug it and forget about it half ass job (lazy mans way )
reason being the EGR valve seat does not garrentee a 100 % sealing surface so a blanking plate is needed true fact .. you should already know this if you knew what your talking about
now the EGR has been deleted correctly there is no reason why a straight through pipe can be fitted to remove the actuators keeping them clean from normal breathing gasses and there is no reason why the original actuators cant be re installed at a later date
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sierrafery
Well-Known Member
I dont want to do that again. My point was already demonstrated, maybe some others will understand the attached document cos it might exceed your capacity of comprehension, as LR official documents have no effect on you i'm sure you'll be smarter than scientists as well
for those who have more opened minds:
important is that what's happening within an electronic engine management with addaptive strategy is based on calculations as are explained there, i post big the most relevant page maybe you'll see who doesnt have a clue
end of page 5:
4. In-Cylinder trapped mass
The in-cylinder trapped mass considered in this paper, includes the fresh air coming from the
compressor, the internal and the external EGR rate trapped into the cylinder after the intake valve closing.
In Diesel engines, the amount of in-cylinder trapped mass affect the combustion process and aftertreatment
devices as well, therefore its estimation is important to perform a suitable control of the
turbocharger, the EGR actuator and the valve timing too. Currently this estimation is carried out by
coupling the air mass flow sensor measurement and the EGR valve position
Page 6
about your obsessive statement
The ECU calculates AIR MASS (kg/hr) based on MAF readings and the AFR is part of the fuelling strategy with EGR active or not...that's a demonstrated fact despite of how the engine can work with or without it as long as it gets the fuel based on how the ECU ''deliveres'' it .
THE ECU IS NOT A DIESEL ENGINE
i rest my case for good now no matter what you say
here's the whole document
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ozzyboydeano
Well-Known Member
i thought you said you know what your talking about
even this kid has more knowledge than you on a simple MAF sensor and its functions
ozzyboydeano
Well-Known Member
how ironic is that
as the OP asked you on the first page .bearing in mind you where the first reply dont have to look very far ....Your reply seems a bit combatative-any reason ?
so how much do you really know
as you mentioned the oil comes from the turbo only .... but you forgot about the natural breathing characteristics of an engine
then you ask how does the EGR contaminate the engine oil ...well this tells me you have very little experience on a basic engine..... as even a none EGR vehicle the engine oil will be contaminated with carbon....this is the nature of the system
so an ecu controlled engine might be out of your comfort zone
some diesel engines have a oxygen sensor placed into the exhaust this is also feed back to the ECU this tells the ecu a few things..... and has very high impact on the fuel injection system
so call this bull**** be more open minded has been mentioned ..basically think outside the box[/QUOTE]
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ozzyboydeano
Well-Known Member
Wammers,you do realise you are being "educated" by the world's leading expert on diesel engine theory and practice...
just like riding a bike practice becomes perfect
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hi
all of this has gone over my head and my brain hurts just reading it, lol , i’m keeping out of this one
noticed u mentioned ref a K and N filter , read a great article the other day
https://www.aulro.com/afvb/technical-chatter/50650-air-filter-tests-finally.html
suprising with so many manufacturers claiming all sorts of false claims, even read one where it claimed to increase the MPG ,
, been also reading over the years where oil that’s been added to air filters cause all untold issues with the maf sensors , where the maf gets a thin coating of oil on it , alas articles i read were on my engines TDV6
bet it’s going to be fun having to remove ur egr blank for these new mot rules, i can see mot testers rubbing there hands together and can see many failing
ozzyboydeano
Well-Known Member
hi
all of this has gone over my head and my brain hurts just reading it, lol , i’m keeping out of this one
noticed u mentioned ref a K and N filter , read a great article the other day
https://www.aulro.com/afvb/technical-chatter/50650-air-filter-tests-finally.html
suprising with so many manufacturers claiming all sorts of false claims, even read one where it claimed to increase the MPG ,
been also reading over the years where oil that’s been added to air filters cause all untold issues with the maf sensors , where the maf gets a thin coating of oil on it , alas articles i read were on my engines TDV6
bet it’s going to be fun having to remove ur egr blank for these new mot rules, i can see mot testers rubbing there hands together and can see many failing
a K&n an air filter on its own wont increase power or help MPG on its own this is why we do modification in stages ...... i also have a snorkel so my my turbo Dyson inst sucking from the wheal arch area specially when doing allot of sand dune or beach work
the correct oil is actually user friendly to maf sensors ..but to over oiling a filter can be easily done that will cause issues
as for removing the blank very simple ...infact re installed the full EGR system is very simple on the td5
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You don't have a clue do you. He is talking a MAF sensor as applicable to an air throttled petrol engine, that is plain from his first few words. Diesel engines are throttled by fuel not by air. You don't seem to know the difference.
just like riding a bike practice becomes perfect
Why do you keep falling off then?
[/QUOTE]
Are you having a laugh, it is quite possible i have forgotten more than you or the person who liked this post will ever know. Diesel engines CANNOT be fuelled subject to airflow through a MAF sensor it is not possible. The only thing that controls engine speed on a diesel is fuel quantity. More fuel more rpm less fuel lower rpm. That is how they work. As long as there is sufficient combustible air in the cylinder to service the rpm request air flow through a MAF is irrelevant. ONLY when EGR is operating does it become important.
ozzyboydeano
Well-Known Member
Are you having a laugh, it is quite possible i have forgotten more than you or the person who liked this post will ever know. Diesel engines CANNOT be fuelled subject to airflow through a MAF sensor it is not possible. The only thing that controls engine speed on a diesel is fuel quantity. More fuel more rpm less fuel lower rpm. That is how they work. As long as there is sufficient combustible air in the cylinder to service the rpm request air flow through a MAF is irrelevant. ONLY when EGR is operating does it become important.[/QUOTE]
so what controls the quantity the ECU of course
i think you have mixed results
yes a typical diesel engine does not need a throttle plate ..but some diesel engines do also rely on on an an ECU
ozzyboydeano
Well-Known Member
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ozzyboydeano
Well-Known Member
yes you are correct a diesel engine does not need throttle plate but the vid explains about AFR
otherwise why would the ECU just dump in fuel when not needed like i said think out side the box
its also unfortunate the td5 does not have varaiable valve timing ...whoops this might be to advanced for you yet we will get to this later when your ready
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