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Discussion Starter · #1 ·
Hey guys,

I'm sure the info is posted somewhere, but a brief bit of searching did me little luck.

I'm hoping to find a link to the wiring diagram for the oxygen sensors, or if you're in the mood to be super helpful and just tell me what color the wires are, that'd be great.

I bought a truck that has a hacked up harness and am in the process of getting it all wired back together. I have no end connectors, so I need to know the color of the wires.

Thanks in advance,

-Mike
 

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o2 sensor on a 91 should be a single purple wire going to the pass side of the y pipe
 
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