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Is my Front O2 Sensor malfunctioning?

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jnf63

15+ Year Contributor
162
4
Aug 27, 2004
Coeur d'Alene, Idaho
Can I please receive some ideas about my Front O2 Sensor’s condition relative to its logged FrontO2 values?

The first log is at idle (coolant temps are high because I’ve been running it parked in the garage, my ISCPosition will stabilize to 34 after running it longer than this brief operation considering the car was hot, the failed LC-1 is being replaced, it’s a 2.3L Auto with FIC 850cc injectors using 264/264 cams, it’s set to idle at 850rpm).

The second log is revving to around 150Hz.

Is my Front O2 Sensor malfunctioning? I read something about my injectors possibly being to blame, yet my FIC injectors were purchased new, and they have only 1200 miles on them (the same for the engine rebuild).
Thanks,
Jim
 

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