i own a 2002 durango 4x4 with a 4.7 ... i noticed to day in the fuse box there was a spot for a oxygen sensor relay .. it was missing .. is this needed on this motor ? i have no codes poping up ran a scan on it it was all clear .. anyone have an idea .. seems to be driving ok ...

 

I have the same thing with mine. Did you figure anything out?

 

Most likely if the Check Engine light is not on (but comes on at first start for a second or two) then it is most likely for California emissions and you shouldn't worry about it.

 

Cool!
Thanks

 

+1 HS.

If it ain't broke, don't try to fix it.

IndyDurango