devonic

Ok i did a mini me swap into my 97 civic dx using a 98 ex head, intake manifold and ex wire harness.

just called honda cause i can't find the 2nd plug for the o2 sensor anywhere.
they told me one goes into the exhaust manifold and the other one goes onto the exhaust pipe on the EX. Well on the DX both sensors go onto the exhaust manifold.
i have to have them both hooked up so i can pass emissions here in pa.

I have looked all over but i cannot find where it would plug in. I know i need to get a helms manual but i am broke right this second. its on my todo list once i get paid.

I'm trying to figure out how i can wire up the 2nd o2 sensor into the system. Can anyone help me with this? the 1st one is fine, it connects right onto the wire harness near the front of the engine. the 2nd the plug for it i cannot find anywhere.
i still have my other harness from the dx too.
please help me i'm going bonkers