where are all the O2 sensors?

hey i have a 1994 auto 4dr HONDA integra, with SOHC, anybody know where all the o2 sensors are located, im trying to find out cause my car has crappy gas mileage and is spitting out black soot, so i figured i might try looking at them, can anybody help?

on the 94 tegs there was only one O2 sensor if I'm not mistaken, and it should be loacted in the catalytic converter... it should be relatively easy to locate it, if it's not in the cat just follow the header back and look the for the O2 bung in the exhaust piping.

so the o2 sensors are just in the exhaust piping?

so the o2 sensors are just in the exhaust piping?
there is only one O2 sensor

ive never seen a sohc integra whats up with that

maybe he put in a D. anyways, just to answer the question, go under the car and look at the cat. you cant miss it.

i guess in japan they put the sohc cause all the cars i ve seen are like mine