hello my o2 sensor stripped out of my header and the check engine light came on so i was ridding around for a while without a o2 sensor then i replaced it and when i start the car the light would go off but then it comes back on i was thinking i have to reset my ecu does anyone know how to do this?

 

Pull the negative battery cable for 10 seconds or pull the ECU fuse for 10 seconds, or pull the green plug near the ECU for 10 seconds.

Search next time, jesus.