P1197 1/2 O2 Sensor Slow During Catalyst Monitor

SYMPTOM
P-1197 SLOW 1/2 O2S DURING CATALYST MONITOR

POSSIBLE CAUSES
- 1/2 oxygen sensor connector observable defect
- 1/2 oxygen sensor defective
- 1/2 oxygen sensor ground circuit open
- Engine fluid consumption
- Exhaust system leaking
- PCM connector observable defect