Morning all... Just went for coffee started car and check engine light came on. Pulled the codes and got this ECM code " P0133C" H02S Slow Response. Any one out there have any idea what this could be. Just so you know my father-in-law passed away and we are 14hrs away from home . presently in Moncton, NB. Did the whole 14 hour drive in one day a week ago Wednesday. Been here for over a week now helping my mother-in-law.But need to get home next week. The car ran fine... Just check engine light came on this morning.