watut

Hey guys I ordered a o2 sensor from ebay (universal). It has 4 wires: 2 white, 1 black and 1 gray. Can someone (who has done it before) tell me what colors to connect them too on the car harness?

slow97maxima

iTrader: (5)

if its new it will come with directions that tell you, mine did anyway

edit: i dont remember the colors so sorry i cant help you

watut

it comes with directions but not for nissans wtf

DCZC

as a sidenote, what brand did you get? I would search the manufacturers website and look at a FSM, compare the two and you should be able to install fairly easy

Nopike

iTrader: (2)

Where are you using the sensor front or rear? What brand is the sensor? Does the sensor have any markings or instructions that indicate which is 12VDC wire, shield wire, signal wire?

Snypa

iTrader: (35)

how mcuh did you get that sensor for/? why didnt you just get it locally at advance(non-universal).you will now have to do tonnes of searching my friend.afterall searching is free.

Nopike

iTrader: (2)

The directions should state the purpose of each wire on the univesal sensor if you can provide the info I may be able to tell you how to hook up to Maxima.

slow97maxima

iTrader: (5)

hmm mine actually had specifics for every car model it could fit

DCZC

slow97, what brand didyou get? I need to replace 2, one front and one rear

slow97maxima

iTrader: (5)

bosch, i have as you can see in my sig, a DIRECT FIT OEM bosch one for 55 shipped, probably even cheaper than a universal

black_maxed95

iTrader: (41)

why did you get one with 4 wires? my o2 sensors only have 3. i get the bosch universal and its just black to black and white to white. there are 2 white ones but it doesnt matter which goes to which white one.

DCZC

On our cars the front o2's are 3 wire, the rear are 4 wires

watut

It is the rear 4 wires with 2 whites, 1 black 1 gray. It's a universal one im not sure which brand, picked it up on eBay for 20 bucks

slow97maxima

iTrader: (5)

why get a no name o2 sensor they arent really that expensive, yeah the one i have for sale is 3 wire before cat...bosch oem sensor.. there are 2 of them like stated above

watut

Black = signal
gray = ground
white= heater positive or ground
whiter = heater positive or ground

Husker Z

iTrader: (1)

So it doesn't matter which white goes where?

93altima

iTrader: (5)

no it shouldnt matter

Husker Z

iTrader: (1)

Thanks.

watut

What colors do I attach them to on the cars wires?

Nopike

iTrader: (2)

For rear sensor

Black = signal to Maximas white wire
gray = ground to Maximas black wire
white= heater positive or ground to Maximas red wire
whiter = heater positive or ground to Maximas red with brown stripe wire.

The fuse for this circuit is #34 15Amp (just in case you have any problems).

I can not absolutely guarantee this is correct but I have checked the factory service manual wiring diagram and I have worked with automotive and industial electronics for may years so I my information is fairly reliable. Let me know how you do.

Nopike

iTrader: (2)

Connect as instructed above but the heater positive is the Maximas Red with brown stripe wire.

watut

I found this in AllData

Nopike

iTrader: (2)

Yes that is the page from FSM that I used.

Nopike

iTrader: (2)

The only connection I am not absolutly sure of is the (white= heater positive or ground to Maximas red wire). I'm trying to find out.

Nopike

iTrader: (2)

I did some research and am confident that my instructions are correct. The two white wires are for the heater in the sensor. One of those wires goes to 12VDC and the other goes to ground through the ECM that is why the red wire is labeled 02HRR at the ECM. A heater is like a coil so polarity does not matter.

Nopike

iTrader: (2)

One more thing, the way I am suggesting you hook up the two white heater wires is exactly like the heater wires are connected on the rest of the heated O2 sensors on the Maxima.

watut

What do you mean by that?

Thanks, I really appreciate your help!

Nopike

iTrader: (2)

I'm trying to explain why my instructions are correct but it really does not matter. Just hook up wires as I instructed. You are welcome, let me know how it goes.

Nopike

iTrader: (2)

Hope you are soldering your connections and make sure wires are not connected to ECM when you do so.

watut

Yep, taking off the battery terminal, unplug harness, and solder connections. It came with some butt connectors, BUT solder + shrinkwrap > cheap *** butt connectors

watut

Did it today what a piece of **** pain in the *** it was. Someway, somehow the wires coming out of my car were the same as the new o2.

Nopike

iTrader: (2)

What was so hard about it? Getting the old sensor loose? Maybe sensor was chanced before? I never actually changed one but had to remove them when changed Y-Pipe.

Is it fixed?

Nopike

iTrader: (2)

Know how you are feeling, auto repairs can sometimes do that to a person.

watut

Thanks very much for your help Nopike. I did it along with the rear shocks and took it out for a spin. Feels much better on the road now!

maxstillen83

do you still use the o.e.m. fog light switch or did you install new switch & reroute the wires?