Rep Power: 0

I have a 2007 Honda Civic with approximately 110,00 miles on the clock.
Recently, after driving for a while and the engine is warm, it would lose power, start blowing black smoke and eventually stall. It starts right up again immediately, but it doesn't move, it starts idling roughly and blowing out black smoke. This only happens when the engine is very warm, after driving about 15-20miles.
CEL is off, and it throws no codes.
I have replaced the injectors, ignition coils, coolant engine temperature sensor, spark plugs, throttle body and the ECU and I have checked for vacuum leaks and found none. Any ideas please

 
Rep Power: 223

I think running stupid rich can cause black smoke and stalling issues. If you have a code reader that will show live data you can look at the long/short trim values to determine if extra fuel is being added.

 
Rep Power: 221

Unplug the primary o2 sensor and see what it does

 
Rep Power: 0

Done that too, still the same. Whenever I unplug any part, it immediately throws the code for that part, but when I plug it back in and clear code, it never comes back despite the car running like crap

 
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I will see about this, but even without plugging in a tool, it's obvious that it's adding extra fuel, to identify the reason for that is now the problem as no codes are shown, which has prompted me to replace every replaceable part, even the ECU

 
Rep Power: 221

I know it's going to throw the code, does it still stall and spew black smoke?

 
Rep Power: 0

Yes, it still does