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Hi All,

Having a 02 sensor dilema, First pic is current dodgy one in the car. Second pic is new 02 sensor.

Obviously the plugs are different. The one in the car doesn't look like it is the correct one, 4 wire plug with only 3 wires connected.

Anyone know which wire is which and how to wire up to the new one?

Cheers

Trent

post-49270-0-41023500-1356917158_thumb.jpg

post-49270-0-26969700-1356917170_thumb.jpg

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looks like somone may have butchered the original loom to fit the O2 sensor that is currently installed. the new one you have seems to be the stock loom setup. You have a couple of options though;

You can source the original loom connector to fit the standard O2 sensor you have bought and cut off the one you have in there already...OR.....

you can keep the same connector and cut off the new one and splice the wires together. The 2 white wires are for the heating element in the sensor and the black wire is the signal wire that goes to your ECU.

your first picture doesnt show which colours are connected to the actual oxygen sensor. IT looks like its a 4 wire connector and the green one is the only one not connected. You might want to use a voltage tester and test the wires so you know which one is which.

If you search ebay you can buy a factory style plug if you want to revert to the factory setup.

... and here is a link but you need to be careful when crimping as they are quite delicate.

http://www.ebay.com.au/itm/O2-Power-Feed-Sensor-Plug-Nissan-RB-SR-3-Pin-/220743549929

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