@@leshipsheshi9635 what you're making model please. Did you do a modification with the O2 sensor? Did you do a remap? On my car I'll get a 300 code if I block the EGR
@@truckdriver8416 What you can do to avoid this and don't need to remap the ECU or modified O2 sensor is just drill a 10mm hole in the middle of the EGR blank plate to allow a small amount of pressure go through, this will fool the ECU that the EGR still working.
@@QuangLe-hv9sw what good would it do to drill a hole in the plate? The whole idea is to block off the EGR and if you put a hole you're not blocking it.
Air filter avoids dirt from entering,the exhaust gas is already filtered. If you say it defeats the purpose of the air filter then why do you not take off your air filter and go and drive on a gravel road and see for yourself
@@tiaansteyn7836 because stuff like soot gets entered back into the engine from the combustion and no way to filter it out. Let the adults do the talking here, okay son?
@@redneck94chevy it does not "defeat the air filter" because the EGR's puropose is not to filter out dirt from the air. Read my comment again but this time slowly and with your glasses on
@@tiaansteyn7836 you obviously have not seen the intake manifold on a diesel engine. with EGR, they get loaded with soot. the soot comes from the exhaust gas that is recirculated into the intake stream. a combustion process, deprived of oxygen by way of the egr system is cooler and therefore less efficient. This is why the DPF is needed, to catch soot particles. When the DPF gets filled up, it regenerates by burning off soot. this is done by added fuel to the exhaust stream, which makes it very very hot. so hot that loads of NOx is produced ( the stuff EGR is supposed to mitigate) to reduce NOx, DEF is added to the exhaust stream. The whole system really is like a circle jerk...
Deleted my EGR years ago, because it was making my truck run stupid. Carbon built up in the manifold and made my truck buck, snort and stomp. Tried to fix it numerous times, but it costs me hundreds of dollars only for the dealer to tell me that nothing was wrong with my truck. I believe that vehicles are WAY over engineered and have become unreliable.
Yeah you can get away with that in the 1990 model because that was Obi-Wan and the computer program was not sophisticated enough to catch it when you delete it. From what I've read after 2002 the computers got smart and began to catch it. What some people do they use an extended pipe on their oxygen sensor so that it doesn't smell the gas coming down the pipe as proficiently that worked until 2002 also.
Some engineering makes things more reliable but bs like the egr and 16 catalytic converters and all that environmental bs definitely make things run worse
After a full rebuild on my Daewoo Matiz '04 I have seen a great difference in power gain. In addition to that as the car covered 4.000-5.000 km I tried blocking the EGR valve and it feels like the car is breathing again. No stalling, big increase in fuel economy and power at every phase, low and high rpm
Deleted my Duramax and never looked back. Running EFI Live tunes. Doesn't smoke, gets much better fuel mileage, runs cooler, more reliable. Engines are air pumps. The more you restrict the air flow on the intake and exhaust, the worse efficiency the engine will have. You want no restrictions.
Its a rare one, deleting egr will energise the turbo more which means it runs at higher rpm than with egr thats ol. possibilities of wear.....! it depends.
I had a77 cadi, the egr gave car many unstable problems. I removed it and installed a blocking plate( steel) with an egr gasket. Car ran great after that, for years. Improved cold engine performance too. Difference of night and day.
The EPA is intentionally mandating that combustion engines performance is to be reduced and have many unnecessary issues in an attempt to make people think electric vehicles are better than combustion engines. Tell me. How safe is it sitting on a huge battery and its magnetic field for long periods of time? Cancer anyone?
Sources on that? Cause I have an older vehicle... this is the problem. Whichever previous owner that did this was obviously gullible. Better be prepared for a whole lot of cleaning/maintenance. What you just cleaned that not that long ago? Guess what buddy? Clean it. Again and again and again.
Been driving a PD105 for two years with my electronic EGR unplugged, and an open exhaust. I drive past cops, turbo whistles loudly and they don't even look. Haha. They are concerned with sound level in my country, but it's a small diesel with a turbo and it's quiet enough unless I floor it. I'll be adding another turbo in the future. Compound style. When I do a full overhaul at 400,000km I'll pull the EGR out and weld it. I want to keep the antishudder valve because of the amount of air I pump through and don't want a runaway.
Blocking EGR without proper remap is actually harming the engine (remap changes diesel fuel injection to start a bit earlier, reducing economy and increasing noise). Local overheating of piston heads is the major damage. Majority of soot is already present in cylinder, only small portion re-enters. Warm-up takes longer, so that colder engine wears out faster (especially for those believing that modern engines magically overcome laws of physics and don't require warm-up). And sticky residue is actually a soot mixed with oil, so if your engine leaks oil through cylinder head seals, or through turbine, it is not good disregarding of EGR. Also EGR valve is not always open, it only opens in certain circumstances, controlled by ECU.
EGR always open during low RPM specially if it is VGT turbo. the longer you stock in a traffic, the greater exhaust gas circulates in the engine because at idle, the turbo closes and all air going to the manifold were passing thru EGR no clean air from air filter.... that's the reality vehicle manufacturer accept because life span of vehicle become shorter.
The egr only works when at constant rpm Soo like when cruising on the highway Having exhaust resuscitated at highway speed lowers combustion temperatures reducing emmisions but having lower temperatures can be better for engine life When you put your foot down on the accelerator the egr isnt is shut If your looking at improving issues to get cleaner engine run an oil catch can. Removing the oil vapour from your ccv (crank case ventilation) will prevent a mixture of wet oil and dry soot from the egr to mix (im talking diesels because thats what i know best and well if it isnt diesel i dont have much interest) This is what happenes to particularly diesel engines where intake piping can build up a carbon layer to the point it restricts intake piping. Oil from your ccv can coat intercoolers which means the air coming through isnt in direct contact with the metal reducing the heat transfer Long story short run a catch can leave the egr alone and if you can some companys offer an intake cleaning service to remove carbon build up on the intake But what do i know im just a mechanic whos worked on cars semis and now working on tractors and have a good knowledge on emission systems
Hey there, totally agreeing with you, i may not be that an expert but like to bring up some facts. Oil mist from ccv has actually helped the engine to stay longer as it partially lubricates the cylinder walls from inside and supports piston ring's life, especially the compression rings. That oil maintains a constant lubricating film thickness inside and the rest is burned away. Another fact, a dry soot is best polishing agent, so a piston with that so speed n with the dry soot could polish the rings fast causing early compression loss in cylinders. Now, These oil mists when mixd with soot forms sludgy, looks bad an may block the air passages but comes less abrasive than dry soot. Im sure the engine would be dirty, sludgy and need constant cleaning but for a bad look comes with some benefits.
@@autoinfogroup1629 the cylinder wall lubrication is maintained by the ways of cross hatching when the cylinder wall is honed oil gets past the rings because of the cross hatching you couldnt rely on ccv for lubrication that would destroy your engine. I think we can both agree that engines would be better off without egr and just vent the ccv to atmosphere 🤷♂️🤣 Keep up the good videos my dude👌
@@mattsayers9047 Did he just say that the oil mist from ccv is better than what engine oil system give? ok O _O I guess the orifices that spray the oil are just for show.
@@Nickperso23 Mercedes c320 CDI/w204. When u press the pedal aggressively, yes you will see smoke. Got more benefits by removing those parts 30% more HP, the engine runs healthier, less fuel per km.. 😊 DPF and EGR are killers of Diesel engines!
@@Tobitoobito00 just software will do, you can stop it by putting an plate on exhaust system.. sorry budd wish my English was good so i can explain further more!
Lowering cylinder temps to make your engine last longer is a load of BS💩. The abrasive soot introduced by the EGR system shortens engine life considerably faster! Not to mention to utilise the EGR system you must also use more fuel, which in turn also shortens engine life!
@@walterbaldwin3643 I strongly believe that is some form of properganda! i.e some of the engines on the world market could still be found without an EGR system fitted in certain regions. Internally there's no difference, they have the same compression ratio, same pistons, same head and valve gear, same fuel systems. And I've certainly never detected any diesel knock on the vehicles I've worked on or owned over the years, and some of those have been on the road many years without the EGR system working. The only vehicles I've encountered that have engine damage due to excessive heat have been either because of a coolant system issue or faulty fuel injector. Not come across one yet where's there's any evidence that a blanked off EGR was the cause.
If delete egr you need colder spark plugs, stainless steel exhaust, header and metallic catalytic conventer. I made that and last coming remap tuning on the dyno. My 25years old car's exhaust gas is cleaner than a new petrol car. Specially after i use bioethanol what is maked only with waste and locally. That makes my car greener than electric car. Still i pay highest taxes. This world needs a big enema.
The earth has been dramatically warming and cooling since it's creation. No EGR, wind turbine or electric car is going to change that. Air pollutants from fuel burning engines are certainly bad for most living things in an affected area. But with the technology we have today there has to be more rationale solutions.
I think egr valve and emissions regs are silly but are more important for cars in high density population areas. Because all the nasty exhaust fumes are being released around all the people for them to breathe in. not so much for global warming. Car is still producing the same amount of green house gasses with or without EGR, CAT and DPF.
The proper way to block EGR is do not fully block it, unless you remap the ECU to disable the EGR function. It's sound weird, but if you completely block the EGR, the ECU will get the back pressure then it will trigger the error code and engine light will be on, then it may put your vehicle the limp node. What you can do to avoid this and don't need to remap the ECU is just drill a 10mm hole in the middle of the EGR blank plate to allow a small amount of pressure go through, this will fool the ECU that the EGR still working.
This one reason why I own older vehicles..(a 1997). It has very simple EGR valve using no feedback monitoring. Completely blocked off EGR port...runs great.
EGR's don't rob horse power. They don't open at idle or wide open throttle. Some engines have water cooled EGR systems. These cause an over heating problem and are often mis diagnosed as a blown head gasket. You can bypass a water cooled system for an air/ air cooled EGR. Let me know if you need to know anything about EGR systems. I am and L1 Tech and ASE Master Auto.
egr engages at low TPS and rpm so it won’t make the car slower. Not sure if it causes unburned gas because the car begins with a table of mixture compensation when egr is engaged then o2 closed loop. But the intake will make carbon deposits
I have a 2010 Focus 1.6 TDCI which keeps losing torque through the gears but as soon as I stop and restart the enging the problem goes away for a few miles and then comes back after several miles. I had the EGR and fuel filter replaced 2 months ago and it cured the problem about 80% but this last 2 weeks it's come back as bad as ever. I know of 2 people who had the EGR software deleted and this cured their problem, they said the engine ran better and the emissions passed the MOTs. My EGR is still under warranty so am taking it back to the garage shortly and will ask him about the option of deleting the software if it happens again.
how is your car condition right now? I have ford focus as well 2007 model running on petrol and check engine lights has been a problem for a while now and it says EGR system flow fault, it might takes more time and cost to order new EGR and replace so I am planning on deleting or blocked the EGR but still unsure about it
Try unplugging the EGR (if electronic) with the engine off, and do an Italian tune up. EGR will stay closed and air will move through the system much more freely. If you don't drive a diesel hard now and then it'll clog up with soot and you'll have oil from the PVC in your induction, turbo, and Intercooler. I drive it hard at least once a day since having my clogging issues. That cleared my issues. My old Volkswagen is driving like new. PD105 BLS. Going to do another Italian tune up this afternoon. 😌
Yes it does. It's the higher power output that increases the temps. This is why Mazda lowers the CR to 14.8:1, to lower temps and reduce NOX emissions.
EGR valves say they ""reduce greenhouse gases, particularly, Nitrogen". Uh, Nitorogen is NOT a greenhouse gas. In fact, Nitrogen makes up nearly 80% of the earth's atmosphere, and has no negative effects as say Carbon Dioxide. Plus rerouting exhaust gases to your air intake is just a stupid thing to do, especially without an intercooler.
A good idea if you want your older car to run better is to block this stupid thing off. And an even better mod is to bypass the vacuum advance switch from the carb to the engine so the car runs much better since it gets the advance that it should.
Bull butter. I was a master Ase technician for 43 years. All the pollution crap does nothing but decrease power and waste fuel, an oil company greed issue.
Lowering engine efficiency does not necessarily reduce engine life, especially with lower combustion temperatures. Not all ECMs activate limp mode when they sense EGR failures, nor do they all restrict power.
Yes the lower engine efficiency does not reduce engine life but the recirculated carbon soot does. If the inhibitor carbon oxide gas was injected seperately to reduce efficiency n temp then its correct, wont affect the engine life at ol. And yes not all makes goes to limp mode just some does.
Lowering efficiency means a higher duty cycle is required to output the same power, therefore engine life is reduced. More important to note, the soot introduced into the combustion chamber via intake is abrasive to the bore, finds its way into the oil, wears at journals. EGR absolutely lowers engine life.
3:04 ~ that's one heck of an engine bay shave. I've thought about an EGR delete in my '99 Eclipse (420A) running nitrous but not so sure now. It's very common in the DSM community but if it's causing extra hot air... I dunno...
I have a 2002 V6 ecotec 3.8 litre GM based engine. I was thinking catch can? Or just blocking it off? But yeah?? Any reply appreciated cheers from Australia 🙂👍👍👍
Does a 2002 model have EGR.? didn't think it was on them then. Remember it's illegal in Australia to interfere with the EGR system although many do so,
Fact check: "Function of EGR is to LOWER efficiency?" - are you high? The way PHYSICS works EGR INCREASES efficiency. It doesn't lower engine life - if anything, there's and extension. Agan: that's physics, not politics. In petrol engines EGR actually increases efficiency. In diesels it only reduces emissions somewhat. "Block off the valvle to improve quality of the vehicle" - another lie. Blocking it does NOTHING in most cases, and actually makes diesel engines knock more. DELETE - somewhat yes, BLOCK - heck no. "Blocking EGR will return the engine to peak efficiency and less fuel needed to maintain same power" - NO. The way EGR works it DECREASES fuel consumption when engine is under constant load (i.e. driving on motorway). It DOES NOT DECREASE MAX POWER AND FUEL CONSUMPTION WHEN NEEDING MAX POWER. because it's TURNED OFF then. In order to see any gain you have to DELETE IT, but that does any good for older diesels mostly, and it's a minor gain. "blocking the CO2 re-entering the engine, it gets better power on pistons at lower rpms" - true, of course, but this is because it will use then MORE FUEL. "(...) this makes manifold, pistons and other components clean" - not really, no. At best it decreases it somewhat, because THE DEPOSITS COME FROM BURNING ENGINE OIL IN CYLINDERS, which comes from PCV (CVS). "car is more responsive to accelerator pedal" - true, but only in specific situations. And arguably you may not even feel the difference. OLder cars - sure. Newer cars (after 2010) - NO. "(...) avoids early blocks in DPF and CC" - this is so laughably untrue it's not funny. Think on it - IF WE DO NOT REDIRECT PARTS OF EXHAUST GASES BACK TO THE CYLINDER, WHERE THE "SOOT" IS BURNED, HOW IN THE HELL WE REDUCE DEPOSITS IN DPF? This doesn't compute: with EGR working there is less particulates hitting DPF, so how blocking it reduces particulates hitting DPF? "(...) incrase NOx and other gases" - Heck, no. if we put more CO2 into the cylinder, then we burn less fuel and produce less CO2 in effect. NOx are slightly different - they come from high pressure in the engine and increased fuel-air ratio. This is why especially diesel PRODUCES MORE NOx naturally (it is, after all compression-ignition engine). "(...) increase sound and vibration" - IN OTHER WORDS - INCREASE KNOCKING, WHICH IS BAD FOR THE ENGINE. "(...) decrease Turbocharger lifespan" - yes, drastically. "burning fuel at higher temperature improves efficiency" - true, but it also increases drastically emissions of NOx, which is very harmful. This is the trade-off with the EGR. "this makes the engine run hot" - yes and no. IT DOESN'T IMPACT THE WAY ENGINE WORKS WHEN MORE POWER IS NEEDED. Engine will run hotter on lower RPMs and when idle, but not when driving dynamically. Thus the "hot engine running" is a myth or shoddy EGR block/delete work.
First of all, the EGR reduce the risk of engine knock because it cools the engine due to less O2 being in the cylinder, which means you can add power. Secondly if the O2 sensor sences to much NOx it will believe the engine is running lean, which it is. As lean conditions create a lot of heat, which is a good condition for NOx to be produced, the ECM will correct the condition, thus it will inject more fuel to counter act the effect. It will reduce fuel effiency and only risk more damage, with barely any difference in power. That's why EGR deletes often lead to check engine lights, as the ECM sence poor conditions. However the EGR aren't open throughout the entire rev-range or during every condition, it open and closes constantly to keep the engine running good and keep emissions low. So the power is the same as in a vehicle without an EGR fitted from factory, but with less emissions. Tampering with the EGR, can potentionally damage the engine, lower fuel efficiency, increase emissions and mess with warranties.
Totally agreed with what you said except one minor bit. O2 sensors don't actually read NOX or even oxygen. O2 sensors are actually thermo couplers which actually sense temperature difference. When heated they create electricity. When hotter they create even more electricity. So the computer understands that when the sensor gives a higher spike of electricity it is therefore hotter thus a lean burn is occurring and then sends more gasoline to cool down combustion. It's really interesting how this works. I explain this to you because you seem to be the smartest person on this site that can understand this. I use this explanation on many mechanics who don't understand this but believe that oxygen sensors are capable of measuring oxygen.
You need to tune it out on newer cars or you'll trip a code and you might go into limp mode. How do I know? Because it happened to me doing 110kms. The car lost power and stalled on the highway and I got stuck until I cleared the emission codes
Turning off egr will result in higher exhaust gas temp and lesser smoke or fuel particulates. DPF regeneration cycles get changed or the ecm might turn the dpf and activate limp mode. And also there are chances of damaging dpf at higher engine speeds with higher exhaust temp.
@@autoinfogroup1629 hey man thanks for your video! Can I ask you if you now anything about how to avoid the oil dilution problem ;; Thanks again and you have my regards from Greece !!!(excuse me for my English...😊😇) Thanks again...👍
Only thing not mentioned is an egr also cools the exhaust gases before recirculating into the engine, this is important for turbo diesel engines as this helps cool the turbo and reduce wear and tear on turbo
No, the EGR valve does not... it chucks hot, dirty exhaust gases into a cylinder which has had cool, clean and condensed air rammed into it by the turbo... so, it fucks up the work the intercooler did and also messes up the lambda setting...!! SCR is a much better way to go because you're dealing with the end product and not a half-assed guess during the internal combustion process...
@@dewaltaholicuk5435 not true you don't know what your talking about. The only reason you get that soot is because the positive crank case ventilation is mixing oil from the crank case back into the intake, as well as the egr is mixing exhaust into the intake and it makes a horrible soot material when they mix. it's much better to pay for a decent oil catch can with baffling and leaving the egr alone. Also your incorrect egr valves have egr coolers they have to cool the hot exhaust gases down before recirculating them back into the intake and this helps reduce knock
@@Beethoven2949 egr cooler cools exhaust gasses but cooled exhaust gasses are not nearly as cool as fresh clean air passed through an inter cooler, emissions on Diesel engines are pure suicide, it’s no coincidence that pre emission semi motors were million+ mile motors and today’s semis are lucky to see half of that.. proof is in the pudding Sounds like you’re drinking the epa kool-Aid
Skankhunt42: You may be correct on some engines but my Mondy Mk3 has no EGR cooling... it comes straight out of the back of the head, around to the EGR valve, whereupon it dumps a whole lot crap into the inlet ports... but it doesn't as I've blocked it off. Just stripped a 165,000 mile mondy diesel and the ports are clogged as they are on my dads mondy. I am going to make a suitable, serviceable, catch-can for the crankcase gasses as I did for my mk1 3.0 Granada many years ago, my spark plugs lasted longer, fuel economy was better and, converting it to manual choke, started and ran better from cold and emissions were lower...
What about 4 earlier turbo diesels with no intercooler is it better to keep EGR on to keep the combustion temperatures cool ,to stop cracking cylinder head ?
EGR decreases the cylinder temperature by reducing oxygen density. Lower temp = lower NOx but more soot. Engine fluctuates EGR to balance the two. Modern engines are designed with it in mind to also reduce overall engine temperature. Have a truck in my shop with a large chugging EXHAUST leak from the INTAKE manifold because they deleted it and screwed the intake valves. $10K will fix the engine but not the stupidity.
Statement/Question; For a turbocharged engine to work properly, Turbocharger is in need of those exhaust gases to spin blades on shaft, Intern intake blades opposite end therefore are pulling in large amounts of air from COOL intake, after passing through turbo this heated /condesced air is passed through cooler and condesced further before entering cylinder, say my system has one exhaust up pipe to/through EGR Enroute to turbo, .Question; Exactly how is this going to work out by completely blocking off my wasted exhaust gasses for this Main purpose of Turing this Turbocharger to increase the power and efficiency of my diesel? . Ofcourse, besides not recirculating all that soot back through the engine. . 2007 GMC Classic LBZ My experience with just about any topic, many are unable to give an accurate diagnosis of what has actually accrued ! Some will say more efficient/power, Others will say the opposite on same engine.
My issue, with the EGR plugged in, is that my car has idle problems with it, it causes the car to shake quite badly, to puke out black, raw diesel smoke (Even though I just replaced the whole EGR system...Like, everything EGR related) So in relation to the problems I have, I'm better off without EGR to really cause a little less harm to the environment, because, if otherwise, I cause a lot more pollution by just coughing unnecessary amounts of smoke (Almost like the diesel trucks that have diesel-rich-Smokey tunes on them). Edit: The car in question is Audi A4 B7 2.0TDI
So in other words, there is an issue somewhere and the guy making money off your views and affiliate marketing told you this will "fix" it... that's not a fix, it's a scam to make you mess your own stuff up so they can tell you what to fix next. Because ya better believe it's not gonna make the underlying problem go away, your just bypassing the symptoms so you can ignore the problem.
I would keep in mind that passing the yearly car checkup is also nice. If your country has one. Deleting it could make your emissions test fail, making it illegal to drive any further before fixing it.
does anyone know if blocking the EGR on 07 ford F150 4.6 is safe and as simple as just covering holes and puting back like nothing ever happened? i want to do this but its my only vehicle
@@autoinfogroup1629 i thank you for the reply snd and the nugget of information which tells me it is safe. going to research soft delete now. my truck deserves to breath fresh air. its been really good to me. thanks again
Hi there, can't say that. If your coolant is not changed periodically or is not balanced by pH levels, can start a corrosion and cause cooler to leak. Carbon soot won't cause much or nil corrosion in any parts.
I have a egr on my yamaha vity XC 125 petrol I'm wanting to block it off would it be exceptable to shove a bolt into the valve or cramp it shut and then get a new exhaust?
@@autoinfogroup1629 The EGR is not blocked and all the sensors are fine. Only the DPF goes into regeneration automatically every 3-4 days. Should I turn off DPF and EGR to avoid problems? And can the injector be damaged during the regeneration as it emits more fuel. Thank you for your reply.
What’s your daily drive cycle like? Idling for long periods and driving low speeds is one cause for more frequent regen cycles and also hurts diesel emission systems. DPFs and EGRs love higher loads/highway speeds. Depending on the engine hours vs mileage, ash (byproduct of DPF) will accumulate over time and limits the DPFs capacity, needing to be removed and cleaned professionally. Regen will not damage injectors and I don’t recommend disabling regen, your DPF will clog and cause much worse problems.
😂sorry did I miss the part that said whether it was better to block or delete egr valve? Every term I heard was block or are they the same thing? If I delete egr valve would my warning light stay off?
Tampering the emissions control device is strictly against the law. This video just says some common outcomes thatz ol. And yes the check engine light may lit up.
Delete the EGR is better, but it mean you have to remap the ECU to disable the EGR function, the engine light will not come on with this method. Blocking the EGR mean you physical put the blank plate between the EGR and intake manifold, but this give you the false code and engine light will come on.
But the engine runs hot when the egr is not engaged .. 😂 at higher speeds so we'll ignore that statement ... Good explanation other than the run hot theory
Hi at higher engine acceleration egr closes and at stable constant speeds at higher engine rpm, egr opens up thus reducing combustion temp. High speed cruising not high speed acceleration.
@@autoinfogroup1629 I mean possibly my ranger's egr cooler is cracked. I think about because the engine has white smoke coming out and weird knocking noise while the engine is cold. (fuel injectors tested - they're fine.) So instead of replacing egr cooler im going to delete it. Not sure if i'll have to re-program the ecu.
I won`t believe it will reduce so dramatically the engine temperature on my 1.6 petrol engine since the pipe is so thin and short (without any cooler) and over time builds up a lot of soot on the throttle body and makes it faulty. I`ve blocked it, check engine light on but i get used to it. Big bs on this car, much better off. Happy EGRs off!!!
It actually does, the pipe often has flairs that get cooled by the wind, like a 2 stroke engine will. With no EGR your engine risk damage due to engine knock and will lower the power output, thus the check engine light. It's only a fools mod...
That's possible and low soot will make longer dpf cleaning time but if the dpf is placed too close to the exhaust, there's a chance of overheating and could damage the filter. As deleting egr can cause a bit higher exhaust temp at long run.
Increased temps from higher power output increased NOX production. NOX is worse than CO2 for human health, so bad idea. Cleaning the EGR on my Mazda2 is a piece of piss. Do it every 6 months. Only problem in 7 yrs was a duff O2 sensor which was fixed for free outside of warranty period.
Hi sir… can u tell me… after you deleted the EGR, when the CEL goes up? I have a civic R18 engine i deleted my EGR at the EGR pipe from the catalyc converter, which means, i block the gases before it reach the EGR valve. And i dont have any CEL appear for 3 days now.. it is possible the CEL will appear soon? Or otherwise my method is a right way…
I don't understand how you would delete the EGR in a state where you have to go through emissions every so many years ? Is there some sort of secret I don't know about
Here in the UK all road vehicles have to pass an annual roadworthiness test known as an MoT (ministry of transport). An emissions check is part of this test. I know of some (not mine) vehicles with an egr delete that pass this test with no problems. Partly due to them being modern common rail systems that burn cleanly anyway and partly because the test cannot simulate load on the engine. So an egr delete, whilst being illegal, would not necessarily cause a vehicle to fail an emissions check.
Its funny when ppl argue over automotive concerns on environment and the next minute, cuts a tree for their fancy house and furniture. Its literally confusing which is right and which is wrong!!!!
By recirculating oxygen-depleted exhaust into the intake, the upstream o2 sensor sees a Rich condition and trims fuel delivery both for emissions and efficiency. Less fuel means less carbon buildup In the engine and exhaust. Lower combustion temps mean less NOx and longer engine life.
This theory is correct if the car goes straight on highway with no hills, traffic and city. Rather lambda sensor, when EGR opens, air flow in Inlet goes down and MAF sensor detects that to trim the fuel. Lambda cross checks and do the additional fuel trimming. Low fuel injection doesn't mean high fuel efficient. Cars with EGR when on city n slops needs to rev up hard to maintain the load ie low throttle response compared to cars with no EGR. Also the soot n particulates re-entering the engine will be continuing which wears out engine fast compared to clean intake engines. Not a big fan of EGR delete but it's the reality.
@@autoinfogroup1629 when one "blocks" egr via via ecu tune, there wont be flat spots or lean conditions, etc. So yeah, if one's dead beat on blocking egr, best is to do it via ecu
Egr makes the combustion temp a little less..so less NOx is produced at the cost of carbon particulates or smoke...not at alarming rates but you may see some when accelerating...this is not a drw back but its supposed to work like that.
