ok i did the whole code reset and i went and got me a new oz sensor, and tune up parts. sun i went to replace it after the tune up and i see that the oz sensor is unplugged?! wtf! so i tried to look for the harness but there is none? i was like no wonder i was getting the 21 code. does anyone know where the oz harness starts? or where it runs i think its tucked somewhere or maybe even cut off. i cant find it anywhere.