Its useless - I had a shop in Karachi and used to refurb automatic transmissions with new and updated parts including a rebuilt torque converter (which I got from outside Pakistan)
at that time when dollar was Rs 55~60/- I used to sell a rebuilt Honda civic auto for approximately 90 to 100K - only 1 out of 10,000 people would buy that because the rest were cheapasses who wanted free repair.
I dont have any trust in Pakistani car owners because 90% of them are "wannabee gangsta with fake sunglasses" who dont even have 2 coins to rub together. They would even try to compare proper suspension work with correct new parts and technique with shah-jee axle works whose jobs couldnt last a year even if you had a prophet pray on it.
in Pakistan - made in Kabul Afghanistan parts are king - so much so that common man can be heard saying that Japan dumps all their excess stock in Kabul as a charity gift and is much much higher quality than even factory OEM parts of the same car.
So my point is that you cannot fix lunacy even if you had a magic wand. If you open a shop and had direct contract with Jatco, Aisin, ZF - you would not sell even a single unit because "Kabuli Zindabad"
This is just one avenue, I was into drivability issues too and used oscilloscopes and logic analyzers to see faults in position sensors or bus networks, my charges were very adequate for the work I did, but the "wannabee car salesman customers" which had words like CL, CF, NZE, EE SJZ etc in their vocabulary did not like that I charged a bit steep for a quick diagnosis telling them that one of their ABS sensor wires is bad on the pump side and requires a replacement pump. They expected I work for 5 hours to tell them this same story.
Then comes the fake currency, pomp, muscle flex, empty promises and other jackassery that we nadra card holders are famous for.
Its very entertaining for me to see such people suffer in their own wisdom.