How important CATs are, can be seen from this video:

https://www.youtube.com/watch?v=gYzzdPBCrxw
How The Most Hated Auto Part Changed The World

The video is comprehensive, and its 500+ comments are absolute gems. In there people (mostly from the US where large engines are common) have shared so many personal experiences that CAT-fitted cars’s exhaust is barely noticeable whereas those without CAT are pushing out naxious fumes causing nausea, burning eyes, burning nostrils, choking lungs etc. Literally ALL the people say that catalytic converter is worth the hassle! Some of them who had to perform a CAT-delete due to whichever reason admit that it increased the engine power, fuel economy and muffler noise however they would prefer an odourless environment and soundless engine over power output and high fuel economy any time! People have also discussed the ambient air quality in western vs third world countries as well as the higher incidence of asthma.

It is so sad that most cars in Pakistan come without CATs, and that ALL the trucks, buses rickshaws, motorcycles, generators, water pumps (engine driven) and peter engines come without any emissions equipment or catalytic converter.

Typo: “the deadline for the automotive manufacturers to shift to Euro 2 has passed since long” should be read as “the deadline for the automotive manufacturers to shift to Euro 5 has passed since long.”

The reference article is here: https://carspiritpk.com/auto-industry-wants-2-years-euro-5/
Even if taking in consideration the 2-year allowance the auto assemblers asked for themselves, they have exceeded it (July 2022) by a few months, hence the question https://carspiritpk.com/auto-industry-wants-2-years-euro-5/#comment-11326.

Coming back after 11 months about this choked CAT problem, I think it depends upon the fuel. E.g. Cultus SF410 (2000-2017) came with a catalytic converter from 2012 onwards. It had this specific badge of Euro 2 written in roman numerals which is shown above in the 3rd photo. Never seen it choking, never seen any mechanic cleaning it up or performing a CAT delete. CAT delete is just a removal of CAT.
Similarly the Corolla 10th gen was fitted with a CAT in 2012 upto 2014, then the 2014-2022 onwards 11th gen Corolla also comes with a Euro 2 catalytic converter which is also represented by a sticker on the 3rd brake light, even to-date when it is December 2022 and the deadline for the automotive manufacturers to shift to Euro 2 has passed since long. Returning to my point, never saw any Corolla going through surgery for a choked CAT.

But seen many many JDMs whose symptoms were performing poorly, low, power, struggling on slopes, high fuel consumption … and the reason was a choked CAT. A parallel example is the Honda cars which are Euro 4 since a very long time, they also frequently seen in workshops undergoing CAT cleaning or CAT delete.

hence I have deduced that fuel compatibility is very important. If we begin getting Euro 6 or Euro 7 fuel, I fully expect that no CAT is gonna choke whether it is Euro 2, 3, 4, 5 or Euro 6 compatible.

They want 2 years to shift to Euro 5 because the vendors they want to buy from are still selling these to other developed countries, meaning price is high. Once everyone moves to Euro 6 or 7, they won’t be able to sell more of these Euro 5 parts, and that’s when our dear assemblers will knock on their door and ask them to sell them their entire Euro 5 stock at a nice hefty discount. 😋

Very good points. Euro 5 shouldn’t be much of a problem any more. We are now getting Euro-5 fuel in most all areas. However, the quality/cleanliness of the fuel in Pakistan will always leave much to be desired,
We have been driving JDM imports which are Euro-5 complaint for years here in Pakistan without much problems. At least I can say that in my case. I have been driving a JDM for over 7 years now. However, I will agree with you that the chocked convert problem, I had to deal with a couple of times. Sadly, due to the fuel quality here, it is a problem even for local assembled cars that have converters.
You are right. Euro standards adoption must be matched with the world. Our refineries must be provided full support and forced if necessary to keep up with the Euro standards and so must our local vehicle assembler sector; whether two or three or four wheeled.
Still, as all our local car companies are assemblers, the change over to Euro 5 should have happened very easily and quickly. I still believe profits are involved in their delaying this.

Euro 7 will speed up the elimination of vehicle air pollutants from roads in the EU, marking a turning point for residents’ lives. The European activists firmly believe clean air is a basic consumer right

Europe already has awesome clean air blue skies and fresh breathe. Gone are the days of 1800s when London was smoggy around the time Britishers were rooting to conquer Mughal empire.
Can’t understand they say the Germany’s GDP is more than 68 Islamic countries combined it means they manage to manufacture so much yet they manage to keep their air clean as well? How do they manage their factory flue and the like? When will our Islamic country feel about cleanliness (of air) as a basic right?

My point exactly. This seems like a grift from the local assemblers. The ‘delay for profit’ angle is the only one that seems plausible here.

2017: https://carspiritpk.com/confusions-hondas-complaint-bad-petrol/
2018: https://carspiritpk.com/honda-pakistan-seeks-japan-experts-help-curb-use-chemicals/

As Ali Khan said above, they are downgrading to Euro2 which maybe not possible for Honda so they are anyway selling Euro4.

Lesson learnt is Euro5 quality fuel should be available (https://carspiritpk.com/blame-where-the-blame-is-due/#comment-7829) otherwise it will result in high emissions as well as reduced engine life, choked converters etc. etc. So before pressurizing auto assemblers they should first pressurize the local oil refineries to get their act together.

Some Foton trucks also claimed to be Euro4. Some UD Quester and Isuzu trucks are also Euro3. And motorcycle being Euro2 (as shown in a large photo above) is meaningless https://carspiritpk.com/blame-where-the-blame-is-due/#comment-8045. It must be Euro5 as minimum to have any +ve impact at all, and that is the best it can become since they have left 2-wheelers out of the mix from Euro6 or Euro7!

PS:- Euro5 is a major upgrade from Euro4 since it introduces PM (particulate matter) criteria for petrol vehicles also (https://en.wikipedia.org/wiki/European_emission_standards#Emission_standards_for_passenger_cars). And this is exactly what we need to combat smog! Bring it on! Heck bring Euro6 on!

https://carspiritpk.com/auto-industry-wants-2-years-euro-5/#comment-8049