the one before the catalytic converter is the same as the one to the left of the valve cover right? for some reason the guy who owned my car before cut the one before the converter, im guessing so it would run rich... so anyways im puttin it back in and just wanted to make sure they are the same, also my engine is a 95 b18b1, so should i get the o2 sensor for that or for a 93 ex?

 

??? is my question confusing?

 

can anyone help me?