O2 sensors help. Simple question!

cyclotegra

New Member
I am replacing my exhaust, when I went to take the header out I pulled the wires from the housing, which they can plug back into no problem. My problem is I am unsure on which order they go in. I looked at the other 02 sensor for color order, plugged it in that order.

My question is, is the color order the same on both of the sensors or is there a different pattern for each sensor?

I did look it up, didn't really find anything helpful.

Thanks,
James
 

spyk3

New Member
the wire should only be long enough to reach each o2 sensor the down stream o2 sensor (post cat) connecter is coming from under the passenger floor board, the upstream (pre cat) comes from the engine bay.
 

cyclotegra

New Member
spyk3 said:
the wire should only be long enough to reach each o2 sensor the down stream o2 sensor (post cat) connecter is coming from under the passenger floor board, the upstream (pre cat) comes from the engine bay.
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I know this. I am asking if each 02 sensor wires line up the same on both the pre and post cat. There is 1 green, 1 white, 2 black for each.
 

j13

Keep It Clean
do the colors match? Is it a universal o2?
 


j13

Keep It Clean
Doesn't matter about the black wires. You can hook them up anyway there it no polority and they won't cuase a short. Those are heater wires.

The green in ground the white is main important, its signals the ECU the A/F ratio.
 

j13

Keep It Clean
Do not solder the wires. Use wire crimps, with shrink wrap is you have it.

If its a bosch sensor

2 white = 2 black =heater
1 gray = green = ground
1 blue = white = signal
 

cyclotegra

New Member
Both are the stock 02 sensor, not replacements. It would be a Honda 1 according to that list.

I plugged them in last night, the same order the other 02 sensor is in, turned the key and no check engine light was on. Does that mean they are in order?
 


cyclotegra

New Member
jdmjim said:
should be the same, you'll get a light if there wrong
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That is what I am thinking. Like I said, I did turn the key and no light came on. If it does come on after its installed, I will just mess around with it more.

Thanks guys for the help.
 

j13

Keep It Clean
cyclotegra said:
That is what I am thinking. Like I said, I did turn the key and no light came on. If it does come on after its installed, I will just mess around with it more.

Thanks guys for the help.
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You're good than. Goodthing you didn't pull the wires out the o2!
 

cyclotegra

New Member
Well I got it all bolted up and its all ok. But the check engine light is on. I guess I will mess with the 02 sensor some more till its ok, or just take it somewhere with a lift. Easier than crawling under the car, haha.
 

cyclotegra

New Member
Also one more thing I should mention. My integra is a LS, the exhaust is made for a gsr. So the header is shorter, making the cat longer. So both of the 02 sensors go into the cat instead of one into the header and one in the cat like on the LS exhaust. Will this make the CEL come on in this case as well?
 
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