Is this my O2 sensor?
I believe this is my O2 sensor. I don't want to tap into the wrong thing.
This is tapped into the manifold

and it runs to this

Is that my primary O2 sensor for my 89 HB Civic? Stock engine (d15b7?)
This is tapped into the manifold

and it runs to this

Is that my primary O2 sensor for my 89 HB Civic? Stock engine (d15b7?)




