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O2 sensor pigtail for harness

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Old Oct 16, 2008 | 02:54 AM
  #21  
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Originally Posted by 1987earthquake
Why does the truck harness come with male plugs for o2's? I need two female plugs to connect my O2's. Does anyone have a couple they cut off or willing to cut off. Let me know. I need them asap. car runs extremely rich.
I am in need of the same thing for my LM7 swap.

I have two O2 sensors, but they have the wrong ends. I need two of the female square type plugs/pigtails.

Where would I buy these?

Thanks!!
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Old Oct 16, 2008 | 05:19 PM
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You have a pm.
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Old Jan 24, 2009 | 08:51 AM
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Originally Posted by LS1MCSS
You have a pm.
Thanks for the connectors dude!!

I have another question for you.

I have to GM Bosch O2 sensors from a LS1 Camaro. Of course they have the wrong O2 harness connectors for my '03 LM7 5.3 swap. Luckily you helped me out with the connectors. I have already swapped the connector ends in the order pattern that the harness wires are for the stock o2 sensors intended for my engine by going to the parts store and noting the wiring harness color pattern (2 white, 1 gray, & 1 black) and re-connecting them in the order of the stock LM7 sensors.

Do all GM OBII type O2 sensors have the same wiring colors? I assume the two white wires are the same thing. Does it matter on the white wires which one goes where as long as another white wire was there before? (not sure if that made sense...)

Here's my question. A buddy got me scared when he said that the PCM would get fried/damaged if the wires weren't in the correct order. Is this true? I know I have the black, gray, and white wires connected in the same pattern as the correct sensors, but I want to know just incase.

Thanks again!!
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