after replacing O2 sensor...

[slowmotiongeniu]

After replacing the o2 sensor after the cat, do I need to to do anything to clear that CEL code? It takes a normal driving cycle to get the code to throw when the sensor has gone bad, what should be done after replacement?

I have to go in for a NYS inspection in the next week, and I don't want to fail for something stupid, and want to be sure that an old code that no longer applies doesn't do it for me.

 

[WI_99'GST]

are you saying that the Check engine light is still on? or are you saying that you want it out of your cars memory, that you had a light at one time? because if you just want the light off, after you replaced the sensor disconnect your battery for a lil while, then it should reset the ECU, im not sure if the ECU itself stores that a light has been triggered at one point or not. Sorry