02 sensor circuit.

[heavychevy98]

Can anyone tell me which pin on my computer reads each o2 sensor? I wanna test the circuit between it and the sensor.
98 with 5.7 btw.

 

[Aloicious]

1998 GMT400 schematics: http://www.gmtruckcentral.com/wiringdiagrams/1998.html

should be in one of the engine performance schematics