So I was driving home from work today and i noticed my CEL was on. This is a new experience with me because the only other times i have had it come on was after i had messed with something. The car ran fine even when the light was on. I got a code 1, and a code 6. I know code 1 is O2 sensor. I dont know code 6. I think its the TCL sensor or something like that. Any help on the matter would be appreciated. Thank you.