So I just changed my rear oxygen sensor, should I reset the ECU by pulling out the CLOCK fuse #13 on passenger side ?

If so do I just unplug it and wait 1-2 minutes then plug it back ? I am not a mechanic so I am scared of everything that I dont know.

 

Yes. Unplug it wait a min then put it back in.

 

When is it recommended to that ? like after changing parts, what parts ?

 

any time you fix something that has caused the CEL light to come on

 

Whats the purpose of doing this ?

 

I'm guessing so the ECU will relearn whatever it has to relearn after you put your new parts on.

 

I just did the reset and it seems "alittle" better.

 

My guess is to let the ECU have time to re-learn the system.

 

Pulling the clock fuse- which is the secret backup power source for the ECU Engine computer, will force a reboot and relearn- and will self test all the systems

Similar idea to what happens if you turn a PC off with the power switch