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O2 question

ol_ben

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Joined
June 29, 1999
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Anyone familiar with the wiring to the O2 sensors on a 93 xlt? I had to cut the wires and found afterward that there are 4 wires - 1 black, 1 gray, 2 white. Is there a difference between the two white wires. If so how is the best way to etermine which white is which.
 






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