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Need help with O2 Sensor wire

red_line81
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int21h Community Regular

int21h

Posted
Posted

I know how hard it is to find what wires are what on the ECU.

I found this website last night, wish I had it when i needed it.

http://www.rb20det.com/ecupinout.html

Doesn't say O2 sensor, could be exhaust gas wire? I don't know. ONe of the other boys might be able to help out.

darkhalf Community Regular

darkhalf

Posted
Posted

the o2 sensor for mine (which should be similar) has two wires heater and one wire sensor

can't remember the colours but the sensor wire produces upto 1volt when the car is running. if you get a multimeter you can check the wires.

the heater wires are +12v and ground so you will find those easier enough

find the colour of the wire from the plug to the O2 sensor and trace it to your ECU

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