Do I have to clear the codes after installing o2 sensor?

Remember the gadget in Prison Break season 4 where it will get the dat

Is this really possible? The one wherei n you have to be 10 feet away from any electronic gadget?Content by Book Store

Light was on got it checked(o2 sensor)replaced it.now what? all i did was replaced it haven’t cleared code yet.

Content by Alvisa Rizky