Exhaust gas recirculation (EGR) made easy
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- čas přidán 15. 03. 2020
- Exhaust gas recirculation is used to reduce harmful emissions from petrol and diesel engines. In this video, we show you how EGR operates, the components it is made up of and how they work.
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Basically an EGR valve forces the engine to smell it's own farts.
😂
👍🏾 True!
Lol that's what i always say
I'll remember this 😅
🤣
Great video. Simple explanation - easy to understand. Great CGI. Very well done. Thank you!!
Racepipe and full egr delete. The way to go for
What they don't tell you is that particularly in diesels, it reduces fuel economy which in-turn increases fuel consumption. I also increases engine wear and reduces engine life. If the EGR or EGR cooler fail (which they do often) they can allow soot into the cylinder which can coat the cylinder walls and damage them or the piston.
These things are also investigated and tested prior to mass implementation with the intent for the systems to last a minimum threshold of time/usage, so don't be so negative. Yes things get clogged etc and performance affected in the long run but that applies to all components. It's just a matter of maintenance like everything in a ICE.
i believe your point , my Hyundai traject engine piston worn out so quickly after investigations we fount out that the erg valve causes the soot on the intake manifold which in turn escape to the cylinders and causes the rings to worn out
@@thenozar7603 Don't confuse negativity with factual reality. As the saying goes, the road to hell is paved with good intentions.
Thats why many do an EGR delete!
Yup. And those EGR parts wear fast and their EXPENSIVE. Also, ANYTHING diesel is Expensive. So it’s a double fist in the eye of your cock WHEN it fails.
Thanks for showing this. Now I know how to dispose of it on my diesels. 👍👍
Great explanation of a shameful wicked system.
Thank you for the information provided. I have a question. I want to inquire about this part. I have a 2011 Yaris with a gasoline engine. When I turn on the feature, I read the live data on the EGR. The reading is zero while standing, while driving, driving lightly, and driving at an accelerated rate. The reading does not change, knowing that it was checked with the special computer in Toyota cars. There are no codes. Malfunctions, but the engine is unstable when parked. I see the engine tachometer at times stable and at times it drops below 550 rpm. Do you have any solution for this car? Thank you.
Glad you included both gas and diesel engines, since I have one of each.
NM
Thank You!❤️
I have no issue with new cars having all this complicated emission requirements, but what I find frustrating is that by the time modern diesels are 15 years old they just won't be maintainable.
These complicated egrs, dpfs cats etc cost a fortune to replace such that it may be more economical to write the car off.
Is that sustainable?
I feel there should be relaxation on the rules when a car reaches a certain age.
Cars may be considered classics when they are 15 years old so that age seems about right to me.
You're absolutely right. As with most things 'green', it ends up making more pollution due to a shortened period of exploitation. There are entire service centers build around cleaning those systems, which is almost an annual maintenance item if you're primarily using your car for in-city driving.
Its the way of the future just ask the greens , they dont think of the bigger pictures they just look at the here n now just like all protesters, they all need to open their eyes and listen to all sides of stories as they may start seeing the real truths rather than what is being spoon fed to them by crooked politicians n so on , they need to stop being lemmings and start looking into things for themselves to make a real difference as currently they are making it so everything ends up in the rubbish tip as china doesnt want their rubbish back
I find it kinda retarded how we must fix the environment by using even more buy and throw away culture.
I often feel they just make these systems so over complicated so people can't afford it.
That being said, i actually don't think i ever changed a cat on any of my cars, i have a Citroen C4 Picasso now that need a dpf, but it have a service life at about 180000 km.
But yes here in Denmark this is total bananas with taxes, i pay around 600£ or 6000 DKR, a year just to have a Saab 9-3 standing still!!
I have code p02e1 Chevrolet Cruz diesel what do you think because EGR valve?
Nice clarification...
amazing
Nice video
what an honest video
Learning functional tests, EGR is part of the test in some vehicles
I used to always install a plate under the egr valve, blocking it's function. Used to! I now do the opposite, i "block" the egr valve open permanently, this allows me to advance the ignition timing substantially, so that i get a lot more power out of a lot less gasoline, without any knocking or pinging.
You’re not getting more power because half the gas in the chamber is inert. So basically you’re just compensating by advancing engine timing
Vielen Dank
Absolutely amazing. Great cgi.
The environmental aspect of reduced NOX emissions is all well and good. Unfortunately all these parts eventually clog up with soot and are usually in difficult to reach positions, making removal and cleaning a difficult and/or expensive job. Same with the DPF - Great idea when it's working, expensive to fix when it doesn't!
Agreed
That’s True
Cooper grease the EGR ❤?
The EGR has aluminium components?
i have a ford ranger 2009 2. 3 with a P0400 code. the egr aparently is in a place where i cannt even see it at all.
What would be the temperature difference in the combustion chamber with vs without recirculated exhaust gas?
This depends on the percentage recirculation. Im currently studying this as part of my thermo course but there are optimizations to be made regarding power output and combustion temperature.
@@thenozar7603 If you reach some actual numbers. Aka the derivative of the heating function. Where input is % of exhaust gas and output is temperature. Or just plain numbers 5% -> 10 degree, 10% ->12 degrees etc. For me its important to understand the magnitude of the effect not actual exact numbers. Because if lets say current average recirculation percentage is about 30% and the thermal cooling effect is 2 degrees then I'd pretty much ignore the cooling effect overall and remove the EGR
It’s a old inefficient system in my opinion, yes it keeps engine temps low, good for a old Tahoe an it’s little clutch fan in the summer, but choking out the motor is no fun. There’s better methods, I’m removing mine😂
I really have a hard time understanding this concept! We take warm hot exhaust gas and put in into the cold intake air, to cool the combustion chamber so it reduces nox? I find that like trying to cool your freezer with a blow torch?
Also we take exhaust gas and take it into the intake to lower O2 levels?! To reduce CO2?
Well how do that work? If you lower the O2 level, the engine would want more air to make the lambda burn fuel near stoikiometric?! Hence doing this would reduce the engines output and wasting the efficiency? It makes no sense to me why you would do this or going this way to solve a problem.
It’s basically used to lower the volumetric efficiency of a vehicle by filling cylinder volume with exhaust gas that has no clean burn able oxygen in it. Doesn’t make any sense to me. I’ve seen more problems with egr systems then benefits. It would be interesting to do back to back dyno testing on peak power output with and without egr as well as track fuel consumption with and without the system in some sort of controlled environment.
I'm not mechanically inclined on this stuff but would exhaust gases be recirculated through a oil catch can if installed?
Nope , catch can is generally just receiving oil vapour caused by blow-by when positive crankcase pressure is present . Catch cans are usually an aftermarket alternative to feeding the oil vapour back into the inlet to be burned on combustion which has a tendancy to decrease performance slightly. By recirculating exhaust gas there's actually a better chance of reducing any hydrocarbons ( unburnt fuel and oil vapour) by reburning them . In theory the hydrocarbons that remain should mostly be eliminated by catalytic converters and DPFs and NOx gases should be greatly decreased.
Look into EVAP system on vehicle's
And also significantly reduces the life of your engine.. They love that part to .
Bypass valve actuator supply and electronic details
nice experience
If reducing o2 is great for low nox, then why not just run with closed throtle and rich mixture....
So basically the EGR valve is a way of the vehicle giving itself a Dutch Oven.
Exactly it forces the vehicle to smell its own farts.
Just did this on a VW TdI. These engines suffocate themselves and in the long run, they than pollute and consume more fuel than necessary because of the wear. Ingenuity and complexity at its finest. Thx politicians and environmentalists! May you inhale your own farts!
When to service the system so it doesn't blow nasty stuff into your intake and mess up the motor?
50k miles. Remove and spray with carb cleaner.
M y2019 MAZDA 2.5 L. turbo engine has a liquid cooled EGR "intercooler" setup. More costly but worth it.
"worth it"? Nah.
EGR - what makes cars less fun, repairs more expensive, bureaucrats happy.
So you think fun is pumping carcinogenic gases into the air we all breath??
Next time you want fun simply piss in your own swimming pool but don't piss in mind.
Your either selfish or stupid, maybe both, but your certainly selfish as you simply don't care
Simply having any internal combustion engine in reality is polluting the air we breathe, that is why leaded petrol is banned.
@@Steven_Rowe lol. Is leaded petrol banned? I wasn't aware of an actual complete ban. Also EGR systems regularly fail requiring replacement of parts, which cause pollution to manufacture and also the risk of destroying the engine, since a failure mode can occur where coolant goes into the intake. The systems also cause engines to run less efficiently than they otherwise would, so overall more fuel is being burnt. So if you take into consideration the extra parts being manufactured, plus their common failures needing replacement, the lower fuel efficiency, if we include AdBlue, that adds weight and is another product requiring manufacture and transportation. Are these systems really reducing total emissions and less pollution in other forms?
@@Steven_Rowe you breathing also pollutes the air. You want to live? Things need to be transported and i still haven't heard how the expired batteries from electric vehicles are recycled or disposed of. Will that be an environmentally friendly process?
@@Steven_Rowe Everything causes pollution in some way. Lots of things involving burning fuel are fun for most people. You are using electricity to write comments and some sort of device. Is electronics manufacturing done without pollution? Hypocrite
@@chrisnoname2725 your point I take, but are you saying because something can fail then therefore let's not have it.
Why don't we say bugger pollution, let's go shoot a loonie lefty.
I look at this way we all polite whether we know it or not.
Don't you think you and I have the right to breathe clean air?
Were never going to live in the utopian perfect world but surely we need to at least strive too.
I no longer live in the city, is the air perfect, probably not.
Can egr malfunction cause a misfire ?
Yes ! if the EGR valve becomes clogged or damaged, it can cause an engine misfire. Cheapest way is to take it off and clean it with parts cleaner like brake cleaner carb cleaner etc. Often times you can do this without having to replace them.
saving fuel vs spending money for spare parts
They never said it saved fuel.
@@chrisnoname2725 they said 1:01
@@SlavJerry Yes. My mistake. Thanks.
BUT less O2 then greater CO emission !!
Been around since the 70s and still can't get it right
Why are you cooling off exhaust gases? Use that heat to pre heat and fully vaporize the fuel before combustion
EGR’s are crap science, junk.
Doesn’t it reduce carbon monoxide, not carbon dioxide?
Part 1:29 to 1:45
Is the part I was most interested in finding more info, but I was lost by their explanation.
Why are the manufacturers fitting these egr valves if they are clogging up with carbon causing the vehicle owner to fork out thousands of pounds to get a replacement only for it to happen again in let’s say another 56k mileage a but yet the DPF has a system that does a reg.
You just answered your own question.
they ARE DOING IT BECAUSE they are clogging up with carbon causing the vehicle owner to fork out thousands of pounds
Great idea to force your engine inhale gases
How much emissions are spent to build me a new engine when mine goes out because it was literally eating it’s own waste and gave up at 100k miles?
Take EGR off and see ste state of it. If you drive mostly in town, it will be cloged up.
How will it be clogged up when the exhaust carbons are not fed back through the engine , its the exhaust carbons sticking to the oil vapours being drawn through via the pcv , these harsh carbons then also scratch the bore surface causing internal issue's, 500,000km on an rd28t and still running strong as day we bought it and still with clean oils when its time to change conpared to others always having engine trouble an oil is black as charcoal , I think greenies are killing the planet more with all the broken vehicle's than they think, same with sending manufacturing to china as now nothing lasts like it used to and is more expansive and ends up in rubbish tips , so you please believe what you want but I'll stick with what I know factually works n lasts, I also use less fuel with no egr than I did with 1 and also my egt is lower than with an egr funny that aye
@@anthonydendle4768 If i drive my 2.0 tdi cffb 5 miles or so on the motorway it goes into limp mode and flashing the glow light.
I thought this was egr but maybe the pcv or a vac pipe! 🤔
Best thing you can do for an engine is decat, DPF delete, swirl flap and EGR delete.
0:25
Long molecules, become short molecules.
This technology causes problems in suction valves and in alle suction system if the engine needs much more a temperature for a while it can take it from the metal part of the exhaust fore one minute ,this is a vain system,why should it be this when this releases carbon dioxide and smoke soot
ALL OUR LIVES we are told the IMPORTANCE OF CLEAN AIR FILTER for engine longevity.
then manufacturers DIVERT ABRASIVE/ ACIDIC SOOT back into the cylinders which GUMM UP RINGS, abrade bores and ACIDIFY OIL.
Worst whats can happen to engine. Cloged intake, stucked egr valve. Its evil
Good grief all more components to fail I’m a vehicle. Which is why I did an egr and cat delete for better performance with a tune 😎😎
Yeah. Screw the enviroment
@@johnturner4400 settle down greta thunberg
which is dumb, EGR helps get to operating temperature faster reducing cold start wear, and there's no reason a cat should prevent you from making power. You can get an 800hp+ cat. Rally cars even have cats. You're just an ignorant car modder who can't grasp how to gain performance without compromising your own vehicle.
@@5PYZ3R Apparently not, my drive to work it takes the exact same amount of time to warm up. I can’t tell the difference. I have however noticed a mileage and small hp increase without my cats. They might have been kinda clogged but I’m sure as hell not buying new ones. StUck bare cheap pipes in their place:)
@@5PYZ3R Actually, I know a solid amount about performance having studied a lot of books involving airflow mechanics and such.
The worst emission/headache part of all modern engines, causing endless clogs,leaks, CEL, etc
Lol, the inverted turbocharger.
Reduces carbon dioxide emissions because most of the carbon accumulates inside your engine until it clogs it completely at some point. By reducing the combustion temperature, there's no complete combustion of the fuel, which is a perfect recipe for carbon accumulation.
4:16
ขนาดเครื่องเจตยังมีแค่ EGR เลยครับ
เสมือนบู้ทเตอร์แระ
ถ้าเครื่องเจ็ตมี egr จริงไอเสียคงย้อนเข้าไอดีเครื่องระเบิดแล้วครับ
BIGGER CARS with SMALLER ENGINES working HARDER don't last.
This is a bandaid fix. You didnt actually improve efficiency, only reduced emissions. Try pre vaporizing the fuel instead of atomizing. Just try it.
Me and my friends want to resurrect an old engine from a dead franchise for a brand that we are big fans of and would like to see back again. We’ll make our own egr for it and everything, I wanted to watch this video to see how it’s done.
egr is the biggest bs on my car. Folks at the garage told me to sometimes run the car 30mins @3500 rpm at least, to burn it clean.
It would clog up anyway.
It made the car run poorly.
But some mechanic remove the EGR, maybe not understand the function. Like my engine of my Suzuki multicab f6a scrum.
This reduced milage by 20%
So basically, my any means necessary, remove your EGR.
Good luck with that if your car has an ECU.
Egr not good 4 engine
lower hp
They lie and say it burns unburned fuel.. but you see they have no way of identifying and separating unburned fuel and they don't recycle all of the exhaust fumes. if they want to burn less fuel they can just inject less fuel in the first place.
What the heck are you talking about?!?!
The only ones I've heard saying that "it burns unburned fuel" is people that have no idea how a internal combustion engine operates.
@@TarenGarond or they have no idea how the EGR system works.. but yes, idiots say that defending the system.
Stupid idea of having EGR. Engine has less power, intake mainfold is incredibly dirty, costs of service is higher and there's a need of cleanIng EGR and throttle body constantly. I removed it and no issues.
See same here
czcams.com/video/ku3qtad22Cg/video.html
Engine killer
Engines can be rebuilt. What about the world our future generations have to live.
So true. They aren't effective enough to put on engines
@@tharakanuwan9986 Well, if you don't get the numbers down somehow, it won't matter what we do today. They will starve. Might as well contribute to death at this point to get those numbers down.
Everyone one that commenting things about how these make your car perform worse... Unless you all driving 40 year old cars - This is just not true. Do your research, stop reading random forums full of car guys who don't even know what they're talking about.
but actually tho, you’re basically feeding carbon from your exhaust gas back to your engine that can clog it up eventually, reducing O2 and increase intake temperature is good for emission but it will also affects your engine’s efficiency, and so fuel consumption
Egr is scam... The manufacturer makes this money making machine.. it cost a lot to clean and replace the parts.
Hippy pleasing crap
True and sad
All Diesel cars are pure shite.