manifold o2 sensor

[91HondaAccord87]

i have aftermarket headers which has the o2 senor in it...anyways, the i've been looking for the plugin point for the o2 sensor...i thought it would be on the wire harness right below the distributor but i couldn't find it. I've been told by honda that it could be below my car...well, i've searched for months but still can't find it...does anyone have any idea or pictures of where the manifold o2 sensor would plug into on a 91 accord ex? it would be greatly appreciated...my check engine light has been on ever since i bought the car well over a year because of this problem...i would like to get this fixed....

Thanks,

[blackcb7]

if you go under the car, right before the catalytic converter you will see the sensor on the pipe,

[91HondaAccord87]

ok...so i understand...theres two o2 sensors correct??

[blackcb7]

if its 90-93 accord, it will only have one, only obd2 car have two 02 sensors

[GunRunner]

if you go under the car, right before the catalytic converter you will see the sensor on the pipe,

x2

[91HondaAccord87]

i'd show you what i meant if i could....i don't have an o2 sensor near my convertor....i just checked...if i knew how to post pictures..i'd post a picture

[91HondaAccord87]

is it possible that i may have 2 o2 sensors....one near the catalytic converter and one in my headers??? just the one in my headers is used as a plug but isn't doing anything and the one under the car is the one thats screwing up?

[blackcb7]

it is a possibility, are both plugged in? pics will be more usefull

[91HondaAccord87]

the one on the headers isn't but i wasn't aware of one before my cat. converter...heres a picture...not a good one because its dark outside now

[NAiL05]

What trim is your car. DX and LX is on the top part of the manifold I think and the EX is right before the cat.

[JDMTuner7]

use the plug thats goes in the manifold you just have to cut the plug off and add some wire of the same gauge solder it together and extend the wire around the back of the motor and solder the plug back to the wire and plug the o2 up

[The G-Man]

The EX cars came with the O2 sensor right before the cat. The LX and DX cars has it on the header near the front of the engine. The header you bought has it near the front of the engine, you need to run some wire to near the cat where your plug is.