alt Hacker News> The sane environmental stuff you mentioned has morphed into a requirement for deeply integrated electronic oversight
Decent catalytic converters require an array of sensors, ECU, and ability to fine control the engine inputs to work - without them most large cities would become smog ridden hells.
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The solution to city air pollution is a different vehicle with a different drive train: an EV. The C15 is a workhorse for farmers and craftsmen not for shopping trips and driving the family to visit granny on the other side of town.
For gasoline engines, electronic fuel injection is far better than a carburetor, it isn't just the emissions systems.
Sure, it's harder to work on. The trade off there is that you don't have to work on it.
Engine control alone can be self-contained. The Ford EEC IV of the 1980s had its program permanently etched into the Intel 8061 CPU, and was designed to last 30 years. It did. I finally sold off my 40 year old Ford Bronco, which was still running on the original engine and CPU.
If you have an electric vehicle you need none of that
This is why late 90s cars are objectively the greatest ever built. You had ECUs, cats, ABS, disc brakes, airbags, power steering, and conventional automatic transmissions. Everything that makes a modern car safe and reliable, but none of the high tech digital BS that has infused things nowadays.
What do the sensors do? There's not much you can change in the catalytic converter so I assume it's just reading temperature? So I assume it's changing the fuel/air combustion ratio according to the cat's temperature?
There's no reason technology has to be user-hostile. You can still have an ECU and screens and everything. When it breaks the screen can be used to tell you exactly which sensor input is out of range. There's no reason parts need to be serialized and learning a new part can only be done once.
You can build a modern vehicle that's still repairable.