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Front o2 sensor color code

Carl B.
in 1990 to Present Legacy, Impreza, Outback, Forester, Baja, WRX&WrxSTI, SVX

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Can anyone tell me the color codes for a obd2 front o2 sensor?  The one I bought has no diagram in the box.  Its A bosch LSU 4.2 sensor for a '00 impreza 2.5 part number 17018.

 

I know which ones are for the heater and thats it.

 

Thanks.

Edited by Carl B.

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