o2 Sensor signal wire
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Junior Member
Joined: Dec 2003
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From: altadena ca.
o2 Sensor signal wire
Have auto meter air/fuel ratio monitor, it calls for the violet gauge wire to be connected to the signal wire from sensor. my question is what color is the o2 sensor wire going into pcm???? i would be glad if anyone can help. thanks vhill 01L
Senior Member
Joined: Mar 2002
Posts: 4,867
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From: NH
It is the black wire. There is a black wire, gray wire and two white wires. The black wire is the signal, the gray is the ground and the two white wires are the heating circuit for the O2.
***EDIT***
You are asking for what color wire going to the O2 sensor itself? I see you mentioned PCM. If that is the case I do not know for sure if the wires going into the PCM remain the same color.
You can tap into the wire at the plug, end of O2 sensor. Use a pigtail and just tap the black wire.
***EDIT***
You are asking for what color wire going to the O2 sensor itself? I see you mentioned PCM. If that is the case I do not know for sure if the wires going into the PCM remain the same color.
You can tap into the wire at the plug, end of O2 sensor. Use a pigtail and just tap the black wire.
Last edited by 01 XLT Sport; Mar 30, 2005 at 06:16 PM.