5.3 votex rediculous amounts of smoke all sudden

Does it smell sweet? Have you checked coolant level?

I have scan tool PO 175 FUEL TRIM RICH #2 bank all it reads change coils plug wires everything first it was a misfire and I done all that then it just gives me a code where it says it's running to Rich no more misfire

Black smoke? Oil smells like gasoline?

You've checked for make sure fuel injectors functioning properly? (Not leaking) vacuum lines in good condition and connected appropriately, check mass airflow sensor and o2 sensor, coolant temperature sensor, pinched fuel lines? ECM may need reprogramming....all could cause p0175 code to arise

Thanx appreciate you my friend