universal oxygen sensor for downstream what wires colors are what

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Jan 21, 2006 | 10:53 AM

kizner

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Joined: Feb 2002

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From: Export, PA, united states

universal oxygen sensor for downstream what wires colors are what

on factory plug on 2nd o2 sensor the wires are red, white, black, black. which ones are heaters, ground, sensor(ecu)

Jan 21, 2006 | 11:09 AM

civicious

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From: Houston, Texas

Hold that plug up to the plug for the primary o2 sensor, and compare the colors.

2 black = heater (ECU pin A6, ignition)
white = o2 signal (ECU pin D14)
green = o2 ground (ECU pin D22)

Jan 21, 2006 | 11:19 AM

built562

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From: Nowhere Cali, Ca, USA

Re: (civicious)

you need to find the original pinouts, then compare to the wiring chart given with the universal, when i did my universal i used a bosch and it had 2 grays, green, white. you just need both wiring diagrams