I have a 2010 mini hatch. upstream 02 sensor was bad i replaced it engine light did,nt go out . I put my code scanner on it it says no codes found pass. when i start the car it shows the code for the same 02 sensor and also pending. can anybody out there tell me how to turn the light i need to smog it soon. thanks.

 

did you clear the code? after repair, you have to clear codes and drive close to 60 miles for the car to be read or codes to pop again (they pop usually within few miles).