code 67, i believe its for catalyst efficency below threshold.

Now does that mean o2 sensor? I ordered my Actron OBD2 scanner and it should be here tomorrow to confirm that but i just wanted to get a heads up. This is a family members of mine. The last time the car threw a CEL they took it to a local mechanic which ended up being a secondary heated o2 sensor, and some other little things about less than 6 months...the bill totaling $400.

Just wondering because i have 3 o2 sensors left off my civic that i can swap if need be.