o2 sensor wiring

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ttowndex

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Sep 12, 2006
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Can someone tell me the wire colors from the harness to the o2 sensor? Some tool clipped mine off and replaced the stock wires with all the same color, and I want to be sure they are connected properly.
The sensor plug has three wires.......
1
2 3

What I need is what color wire from the stock harness goes to each one.
Thanks!
 

hottscennessey

DONT BE A BITCH!
Jun 3, 2005
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I'm interested too.. this wire (shielded?) has two wires running through it like an RCA cable. Both of them ground out with the continuity tester, i was wondering if this was correct?

Its weird to be because both wires seem to become one once they reach the connector for the sensor
 

ttowndex

New Member
Sep 12, 2006
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Texas
MDCmotorsports said:
The colored is for signal (typically blue).

The two black wires are power, with no polarity.

Ok. So which spot does the colored wire go to in the plug on the harness? Is it the top one?
 

jdub

Official SM Expert: Motor Oil, Lubricants & Fil
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Feb 10, 2006
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On the harness side ('89)...the blue wire from the sensor connects to a light yellow or off white wire.
 
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