Still another SES question - 02 SE

- reset =batt connector off for ½hour

- My guess, dunno, here is an investment worth checking

Go to Autozone, they will scan and reset it for free. Maxima.org is still up.

The battery disconnect thing won't work on an '02.

The battery disconnect thing won't work on an '02.

I had a friend scan the code and got a P1147, which is O2 sensors. I also had him clear the code and turn off the light. Dealer wants $480 to replace 2 sensors, including $60 for diagnosis. Since the SES light has not come back on, do I really need to replace the sensors? Is there any harm in waiting to see if it comes back on?

While it's true that it will reset if you disconnect the battery for long enough (several hours), it's not the way to do it as it will also lose all the learned settings and reset all the emissions monitors. Not a good thing in states with emissions testing.

...it will also lose all the learned settings and reset all the emissions monitors. .. Master-Reset is zeroing ALL registry databits to all zeros. Doesnt matter how its achieved (although dont recommend the usual hammer - as bootup might become problematic).

The ECU-selflearnin process for cleared ECU is 20 minutes if one follows FSM guidelines, no problem. Time is longer if one just drives, ECU will do all for u. Emission testers may want one week (?) data.

The batt off time: various sources say ½-24hrs, my experience 30minutes, later absolutely no problems.

But why not use autozone if they do it free? I am I (?) just lazy. Some let stealerships do it with 150? charge, I say I (?), that billin is crazy...

Mine does the same thing and as long as your mileage isn't dropping it is fine to have them reset.