O2 sensors

[BIGMAN]

on a 99JDM ITR B18C motor where do the o2 sensors go i know one of them goes down to the exhaust near the catalytic converter where does the other one go

 

[mrnice1058]

one goes before the cat and the other goes right after the cat.

 

[BIGMAN]

are the two sensors joined together? i can only see one plug in on my engine harness so i just my old single o2 sensor off my old DX harness.

will this stop the engine from running or just throw a code

 

[typesiracing]

first off what ecu are you using? and what year is the car?