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Home >> Nissan-Datsun >> 2004 >> Sentra SE-R >> Repair and Diagnosis >> External Pages >> Different car >> Section 423 (Engine Control System - DTC) >> DTC P1279, P1289: A/F Sensor >> Diagnostic Procedure >> 11. Check PCV Valve

11. Check PCV Valve

WARNING: This page is about a different car, the 2004 Nissan Maxima. However, it is still accessible from the selected car via links, so may be relevant.

Refer to "POSITIVE CRANKCASE VENTILATION ".

OK or NG 

  1. OK: GO TO 12.
  2. NG: Repair or replace PCV valve.
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