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Home >> Infiniti >> 2004 >> Q45 >> Repair and Diagnosis >> Engine Performance >> Engine Control System >> DTC P1146, P1166: Ho2S2 >> Diagnostic Procedure >> 7. Check Heated Oxygen Sensor 2

7. Check Heated Oxygen Sensor 2

Refer to COMPONENT INSPECTION  .

OK or NG 

OK : GO TO 8.

NG : Replace malfunctioning heated oxygen sensor 2.