Fuel not getting through, no power, engine warning light is on. What's the situation? Is it the fuel injector or the catalytic converter?

There are many reasons, with the more probable ones being a crack in the intercooler intake pipe, a faulty pressure differential sensor, carbon buildup blocking the EGR cooler module, or a clogged DPF particle filter. The solutions include replacing the reinforced intercooler intake pipe, removing and cleaning the EGR cooler module with carburetor cleaner, dismantling the intercooler intake pipe throttle intake manifold to scrape off carbon deposits, and removing the first section of the exhaust pipe to blow off dust with a high-pressure air gun (liquid cleaning is strictly prohibited).

Another possibility is that the diesel filter needs replacing. I had this issue before.

Typically, it's particle capture and compression sensors.

Replace the catalytic converter.

I don't know, it hasn't broken down before.