O2 sensor question

[BOWEN, SCOTT M. (JSC-CC)]

I am dropping a new motor in my '91 240SX this weekend and I am looking to
install a second O2 sensor to drive my A/F meter.

Can some one tell me the pin out for a 3-wire Bosch sensor?

Thanks!

Scott Bowen
Bastard Motorsports Engineering
Houston, TX

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