P0401 EGR insufficient flow-vw passat BKP

[DMitch16]

Dervs don't run hot , it's a case of do you want oxygen or less oxygen , less oxygen = incomplete combustion = soot .

Higher temp combustion = more Nitrogen Oxides = add more lung harming pollution to the air = more children with breathing issues and lung diseases. A blanked EGR does increase the cylinder combustion temperature, period. DERVs although lower revs generally run hotter than petrol but that is not the issue. Blanking an EGR is enough to increase combustion temperature to a point where Nox emitted is 5 fold what it was before.

[Gazwould]

Got a link to the 5 fold effect ?

Every boiler flue pumps out NOx but the motorist is an easy government tax victim .

How do they accredit individual ailments to NOx ?

With a blanked egr thus more complete combustion you get more low down torque , more mpg , cleaner engine oil , higher NOx but less diesel particulates .

[DMitch16]

With a blanked egr thus more complete combustion you get more low down torque , more mpg , cleaner engine oil , higher NOx but less diesel particulates .

This part is true but nitrogen oxides is the invisible killer. I don't dispute the better performance but having personally been subjected to excess nitrogen oxides which caused unruly heart arythmia (my medical history confirms the cause) that disappeared when no longer subjected to it, I am a walking, living, thank goodness, test subject. There are countless scientific examples and tests online regarding diesel combustion temperature and levels of NOx emitted. Once over a certain combustion temperature of around 1300° all show exponential increases in NOx gases (I used 5 fold but some much higher).

Red diesel is far cheaper than regular diesel and our cars can run perfectly well on it so why don't we recommend everyone to get red diesel? Because it is also illegal, misuse heavily fined and a result of the Government wanting motorists to pay huge amounts of tax on refined pump diesel yet the suggestion for someone to remove an emissions controlling item is OK?

Perhaps once emissions control parts removal is heavily fined and difficult for people to get away with such changes, it will no longer be suggested.

[Gazwould]

What cause was your particular over exposure to NOx ?

[DMitch16]

What cause was your particular over exposure to NOx ?

Turbo to DPF gasket leaking on a borrowed Golf GTD which unbeknown to me had the DPF gutted and blanked EGR the year before which made things worse than it would have been. Had it for 3 weeks driving 2 hours daily with cabin slowly filling with exhaust gases. Heart started to palpitate erratically and as I couldn't find any leak at the time and because my worsening condition only started when I began using the car, my partners father, an Environmental Technician took the car and tested the interior air quality. He found a number of toxic gases coming into the cabin but a proportionally higher Nitric Oxide content when the car was running. He eventually found the small leak from the gasket with the exhaust gases being sucked in through a bulkhead hole straight into the blower. I stopped using the car and the palpitations subsided. My doctor said that the palpitations would almost certainly have been as a result of Nitrogen Dioxide or Nitric Oxide gases (which was heavily present) due to the type of arythmia I was experiencing. If Carbon Monoxide had been higher it would have probably left me with long term heart muscle damage too which is not evident. I count myself lucky.

[Gazwould]

Could said Environmental Technician test the effectiveness of a Mann Hummel Ferocious Plus Activated Charcoal pollen filter Vs ordinary pollen filter on the presence of NOx ?



Numerous studies , TV programmes all conclude that car occupants are most at risk compared to bus passenger , pedestrian and cyclist because the small cabin builds up with concentrated levels of pollutants coming in through the air vents .

[DMitch16]

Could said Environmental Technician test the effectiveness of a Mann Hummel Ferocious Plus Activated Charcoal pollen filter Vs ordinary pollen filter on the presence of NOx ?



Numerous studies , TV programmes all conclude that car occupants are most at risk compared to bus passenger , pedestrian and cyclist because the small cabin builds up with concentrated levels of pollutants coming in through the air vents .

Said Technician did discover a plain pollen filter and recommended that the owner change this for an activated charcoal one once the car was given back and the turbo gasket leak was rectified. I always fit a Mann activated charcoal version in every car I own or have previously owned.

Aside from harmful invisible NOx gases do you happen to know what one the biggest contributors to airborn particulate levels is?

[Gazwould]

[DMitch16]

Interestingly this does not mention tyre or brake particulates that make up 11% of all smaller than 2.5PM sized contaminants which follows (on particulates emitted by a car) exhausts at 18%. In fact brake dust particulates are presently higher from electric and hybrid petrol electric cars than they are from standard combustion engined only vehicles. Another part of motoring that will be targeted soon.

[Gazwould]

I did post elsewhere an article someone wasn't happy enough about particulates as tyre and brake pads contribute .

Nothing good about dusty oem & OE pads thats why I have low dust Redstuff front and rear .