I just used my superchips to tell me what my check engine light was. It says it was PO137, O2 sensor 1/2 circuit low. Has anyone dealt with this? From my understanding there are multiple O2 sensors on the jk. Any help would be appreciated.
My thought is that it would be the first O2 sensor but I was told there is 3 on the jk's. Haven't looks cause its a downpour outside. Anyone have to replace one yet?