Where does the o2 plug in?

[88dx]

I need to know where the o2 sensor plugs in on a 90 integra. When I got this car, the sensor wasnt wired. I cant seem to find where it should plug in.

Could someone please direct me to a pic or a diagram? Thanks in advance.

[blackboi50]

check in the trunk on top of the gas tank!!!!!!..........1

[88dx]

lol... when I got the car the wires were cut right at the o2 in the header. Now I'm tryin to get it right and need to know where the new one should run to plug in.

[Barefoot]

there should just be the 1 on the front lower side of the header.

[green91]

its usually right by the reverse light plugs at the trans.

[88dx]

The header already has the sensor in it.

So it should plug in at the reverse light plugs on the transmission?

[Got Vtec?]

damn yo the sensor was NEW..when i had it.!

[Got Vtec?]

BTW hit me up on tha cluster!

[88dx]

Yeah the o2 looks new...looks like someone just unplugged it and snipped it off at the actual sensor in the header.