Saulg37s

I have a 08 g37s coupe and i have run into an issue, the driver side Cat O2 sensor connector broke while driving on the highway, soon after the check engine light came on. Now that i want to fixt it i can't since the wires coning from the harness are not the same Color, and neither the passenger's side O2 sensor wires.
The O2 sensor wires colors are Black, Light Blue, Light green and Orange
and the sensor's are Black, Grey and 2 white.
Does someone knows which wire goes to which wire?

crookncastle

you are better off buying a new o2 sensor. trying to repair the broken connector even when you get the correct wire to the correct slot inside the connector does not guarantee that the sensor will function correctly afterwards. excessive resistance, moisture, and just vibration due to pins being loose may cause the o2 sensor to code again.

Saulg37s

Even if I buy a new O2 sensor the problem will be the same since the side that broke was the wire harness connector, that's Why I need to know which color goes to which

crookncastle

then you should have stated you needed the pin terminal position of the wire harness side for the o2 connector.
according to your vehicle description. its connector f3 air fuel ratio sensor1 bank1. connector type afz04fb. color code and terminals are as follows.
pin1 (L) im guessing lavender
pin2 (R) red
pin3 (W) white
pin4 (Y) yellow

connector f54 heated oxygen sensor sensor2 bank1. connector type afz04fb. color code and terminals are as follows
pin1 (B) im guessing its either means blue or black
pin2 (R) red
pin3 (P) purple
pin4 (W) white

got this from alldata and not from climbing under a car. hope it helps

Saulg37s

Thanks but the colors aren't not the same
here is a picture of the wires to see if it helps
The colors are Black, Orange, Light blue and Light blueish green
I tried to put them back inside the connector to try different combinations

crookncastle

here is the info for the bank2 off of alldata

connector f20, air fuel ratio sensor sensor1 bank2. color code and terminal pin as follows.
pin1 (LG) light green
pin2 (V) violet
pin3 (W) white
pin4 (Y) yellow

connector f53, heated oxygen sensor2 bank2. color code and terminal pin as follows.
pin1 (B) possible black or blue
pin2 (LG) light green
pin3 (SB) striped blue?
pin4 (O) orange

looks like your pic refers to bank2 sensor2. good luck

13_SkylineSedan

Here are the color codes...

GodlikeRage

Hey did you ever fix this? I'm in the same situation, a tree branch in the road clipped my wires clean off. Where do the wires go?