Pre Cat O2 Sensor Wiring

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Apr 7, 2010

Harky000

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Pre Cat O2 Sensor Wiring

Hi,
I'm having an issue wiring in the Original Honda Wide-band o2 sensor before the catalytic. The wiring diagram says below is correct:

Car Harness[xxxxxxxxxxx]O2 Sensor
Black/Yellow <----------> White
White <-----------------> Black
Black/White <----------> White
Green/Yellow <----------> Grey

My 2004 Civic DXG D17A1

Car Harness [xxxx]O2 Sensor
White [xxxxxxxxxxx] Green
Green [xxxxxxxxxxx] Black
Red [xxxxxxxxxxxxx] Black
Red/Yellow [xxxxxx] White

So I'm Assuming green to green and white to white. I think the black wires match up to the red ones, which i think are the sensor heater power and ground wires. i think polarity doesn't matter for the heater... BUT.. i want to be sure any ideas gimme a shout thanks!!

Aaron

Last edited by Harky000; Apr 7, 2010 at 07:35 PM.

Apr 12, 2010

Harky000

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Re: Pre Cat O2 Sensor Wiring

Nobody?..

Honda Canada are really being dicks about this issue and the dealers have no idea...

All the dealer can suggest is to trace the wiring back to the ECU. Anyone know how difficult this would be to do? My car is eating fuel like crazy while this o2 sensor is unplugged. anyone know a temp fix till i figure this out!!??