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Oxygen sensor help - 6G Celicas Forums

Topic #92495 6 posts Started by Island_Racer
Just need a little help id-ing some wires.
The connector for the o2 sensor broke in my hands and now i need to know which wire (harness side) connects to which wire (sensor side), so if anyone could just pull theirs and let me know, that would be awesome.

Harness Side:

1. White
2. Black and Yellow
3. Blue and White
4. Brown


Sensor Side

1. White
2. Blue
3. Black
4. Black

I have tried a few combinations however am tired of blowing my efi (15A) fuse...

This post has been edited by Island_Racer: Apr 24, 2014 - 11:19 AM
>
QUOTE (Island_Racer @ Apr 18, 2014 - 2:40 PM) *
>Just need a little help id-ing some wires.
The connector for the o2 sensor broke in my hands and now i need to know which wire (harness side) connects to which wire (sensor side), so if anyone could just pull theirs and let me know, that would be awesome.

Harness Side:

1. Black and Red
2. Black and Yellow
3. Blue and White
4. Brown


Sensor Side

1. White
2. Blue
3. Black
4. Black

I have tried a few combinations however am tired of blowing my efi (15A) fuse...


What chassis is your car?

Silly97 ProgressDirtBag87 ProgressCalifornia Members Check In
the 2 black wires are the heater circuit. they should be pins 1 and 2. the others are the OX signal and ground.

on on the sensor plug, pin 1 is the heater signal back to the ECU.

pin 2 is the +B 12V when you turn on the key. so isolate all the wires, turn the key on and find the wire that is giving you 12V

pin 3 is the signal wire to the ECU, im not sure if it mates up with the white or blue wire on the sensor plug.

Pin 4 is the brown wire, its the ground.

2001 Celica GT-S Turbo1997 Supra TT 6speed1997 Celica 3MZ/1MZ swap1990 Celica All-Trac
>
QUOTE (ILoveMySilly97 @ Apr 18, 2014 - 6:46 PM) *
>>
QUOTE (Island_Racer @ Apr 18, 2014 - 2:40 PM) *
>Just need a little help id-ing some wires.
The connector for the o2 sensor broke in my hands and now i need to know which wire (harness side) connects to which wire (sensor side), so if anyone could just pull theirs and let me know, that would be awesome.

Harness Side:

1. Black and Red
2. Black and Yellow
3. Blue and White
4. Brown


Sensor Side

1. White
2. Blue
3. Black
4. Black

I have tried a few combinations however am tired of blowing my efi (15A) fuse...


What chassis is your car?


ST205
>
QUOTE (Smaay @ Apr 18, 2014 - 10:29 PM) *
>the 2 black wires are the heater circuit. they should be pins 1 and 2. the others are the OX signal and ground.

on on the sensor plug, pin 1 is the heater signal back to the ECU.

pin 2 is the +B 12V when you turn on the key. so isolate all the wires, turn the key on and find the wire that is giving you 12V

pin 3 is the signal wire to the ECU, im not sure if it mates up with the white or blue wire on the sensor plug.

Pin 4 is the brown wire, its the ground.


Saying pin 1,2 etc wont help me, the connector (harness side) broke and i only have the 4 colored wires sitting. I get that two r for the heater circuit, one for o2 sensor and the last is ground. But apart from knowing the brown is ground. What r the others.
ok i figured it out so if anyone needs to know after this.

Harness Side ----------> Sensor Side

Brown ----------> White
White ----------> Blue
White/Blue ----------> Black
Yellow/Black ----------> Black

the blacks dont matter the order.

This post has been edited by Island_Racer: Apr 24, 2014 - 11:18 AM