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Old 03-11-2015, 11:22 AM   #1
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Default Looking for O2 sensor signal - stock ECU

I'm looking for the front O2 signal pin to wire in a UEGO to my stock ECU, but I can't seem to find it anywhere on that pinout sheet. I see the front and rear O2 heater control pins on 3J and 3P...is that the signal line? Or am I just missing something?

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Old 03-11-2015, 10:22 PM   #2
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Front O2 signal is the blue wire at 4W:

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Old 03-11-2015, 11:30 PM   #3
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Thanks Joe, that diagram is very helpful!
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