So, my o2 sensor took a huge **** on me.. And unfortunately this awesome recession has left me job less so i cant even shell out the 80 bucks to buy a new one.

Now my car is doing a whooping 12~15 miles to the gallon (mind blowing fuel efficiency i know...) and this is hurting me very badly as i am spending the money that i need to keep a roof over my head, in gas.. originally i was doing around 28 mpg or so which was not to bad.

So Ive got a 99 accord ex with the f23A1 in it. I know that my o2 sensor is heated, thats about it.. My cousin is a mechanic, he gave me a o2 sensor outta '99 Nissan pathfinder 3.3L its a heated o2 sensor like mine and its made by Bosch so its good. He claims it'll hook up no problem I just need to get the wiring right.

The only problem is that the color scheme for the wires is different then mine.. It has 2 white's a black and a grey, while mine has two blacks a green and a grey... I have no idea which does what.

Can anyone help me find a wiring diagram or does anyone know which wires would go where?? I really dont want to just try something and end up putting a heater wire to the ecu and frying that bitch. cause that will put me in a deeper **** hole then the one Im already in.
I dont get internet all the time so ill try to be as quick as possible with answering any questions that i can, so please bear with me.

Thanks alot in advanced guys.

 

Just a guestimation here, I'd think that the 2 whites would go to the 2 blacks, the black to green, and the grey to grey but thats just a guess .

 

Allright Mr. Taco - here's what I've got for you. Attached are PDFs of wiring diagrams for the Accord and the Pathfinder. Unfortunately the wire colours for the Nissan don't match up to what you've described ... but if you just match the pin up with its function on the Accord to the same one on the Pathfinder then you should be out of the woods.

 

uhh lol im not amazing at reading these wiring diagrams but...
Correct me if im wrong my pin 4(accord) = pin 1 (pathfinder), pin 3 = pin 4, pin 2 = pin 1, and pin 1 = pin 2. So to make that easier to read

4~1, 3~4, 2~1, 1~2

this side being honda<<<<< >>>> this side being nissan

wish the colors would matchup that would make things so much easier, damn after market parts lol

I dont got the connectors for this i only got a sensor with wires so


I'm thinking that the two whites are pin 3 and 4 on this sensor and the grey and black wires are 1 and 2, cause from the diagram there are 2 wires with the same color. question is does it matter which white wire goes to which?? cause i dont think ill be able to tell the two apart.

thnx for those diagrams btw confusing but helpful

 

You've written 1 on there twice on the Nissan side.

I think it's like this:

4~1, 3~4, 2~3, 1~2

Good question about the wire colours... to be honest, I don't know.... BUT it is common to use the same colour of wire if it doesn't matter

 

woops lol i did that twice too, im special .. but what you got there is what i meant.

And thats what I was figuring with the colors, oh well if worse comes to worse ill know.. lol

nahh i think, that itl be fine as long as i dont wire one of those power wires to the ecu i hopefully wont fry it

 

So update to this.. white is heater wires, grey is ground, and black is your actual sensor wire.
This goes for nearly every 4 wire Bosch O2 sensor

I managed to find this manual which proved to be of a lot of use

For those who may be seeking it in the future its attached

O2InstallGDWEB09.pdf

 

i have the same problem but mine is with a 1995 nissan pathfinder and the o2 sensor on it has 2 wires and the sensor they said would work for it has four wires and im not sure how to hook this up can you please help me?