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Home >> Infiniti >> 2004 >> M45 >> Repair and Diagnosis >> Engine Performance >> Engine Control System >> DTC P0133, P0153: Ho2S1 >> Diagnostic Procedure >> 4. Check For Intake Air Leak
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4. Check For Intake Air Leak

Listen for an intake air leak after the mass air flow sensor.

OK or NG 

  1. OK: GO TO 5.
  2. NG: Repair or replace.
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