i have an OBDa civic EX engine harness. for some reason, its missing an O2 sensor female harness outlet. i got one of em, which im sure its the harness before the cat converter, so im guessing im missing the one after the cat.

can someone lay out the color scheme for both the harness before and after the cat converter?

and also, if the 2nd o2 outlet (the one after the cat converter) is a 3-wired plug?

or show pictures can gladly help much more!

any help gladly appreciated! *thumbs up*

 

i know the cat converter sub wire o2 harness for the EXes are located near the firewall (the one after the cat converter, but the o2 sensor itself have a 4 wire. im trying to remember was the sub-wire a 3-wire that converts the 4 wire o2 into a 3-wire. anyone else might know about this?

http://www.hondaautomotiveparts.com/...13S020_B02.gif

#26 the sub-wire harness for the after cat. converter o2 sensor.

 

anyone else?