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Signal/Heater wire color on IX rear o2?

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Old Feb 3, 2007 | 02:00 PM
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Question Signal/Heater wire color on IX rear o2?

Just wanted to know which color the heater wire and the sender wire are on the IX rear o2. I know that there are two black ground wires but there is a white wire and a blue wire and I don't know which one is which. Thanks for your help.
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Old Feb 3, 2007 | 02:09 PM
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its a 4 wire sensor. On the Car harness side the color of the wires are as follows.

Red with yellow stripe is the Signal to computer.
Blue with yellow stripe is the refrence from computer
White is the Heater power source
Black is the Heater Ground.
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Old Feb 3, 2007 | 02:12 PM
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Originally Posted by 3SgteGuru
its a 4 wire sensor. On the Car harness side the color of the wires are as follows.

Red with yellow stripe is the Signal to computer.
Blue with yellow stripe is the refrence from computer
White is the Heater power source
Black is the Heater Ground.
Okay well mine has two black a blue and a white...no stripes. So then I take it that the blue is the signal, and white is heat? (both blacks would then be ground)
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Old Feb 3, 2007 | 02:32 PM
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anybody?
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Old Feb 3, 2007 | 05:30 PM
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Originally Posted by XK120
Okay well mine has two black a blue and a white...no stripes. So then I take it that the blue is the signal, and white is heat? (both blacks would then be ground)
that is how they are on the VIII's i think they are the same on the XI's
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Old Jun 23, 2008 | 10:12 AM
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From: Boston, MA
bump for any update
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Old Jun 23, 2008 | 04:31 PM
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FYI, i got the color scheme
make these connections
oem to bosch
black to white
black to white
blue to black
white to grey
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Old Jan 20, 2009 | 03:10 PM
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Hate to bring up a dead thread but I have an o2 sensor (OEM) that has two black wires, a white and a blue but the car's harness has a red w/ yellow stripe, blue w/yellow stripe, black & white wire. Anyone know which wire goes where?
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