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Home >> Infiniti >> 2007 >> G35 x >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 43 (Engine Control System - Introduction (Coupe)) >> Basic Service Procedure >> Idle Air Volume Learning >> Diagnostic Procedure
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Diagnostic Procedure

WARNING: This page is about a different variant/trim than selected.

If Idle Air Volume Learning cannot be performed successfully, proceed as follows: 

  1. Check that throttle valve is fully closed  .
  2. Check PCV valve operation  .
  3. Check that downstream of throttle valve is free from air leakage  .
  4. When the above three items check out OK, engine component parts and their installation condition are questionable. Check and eliminate the cause of the incident  .

    It is useful to perform ," TROUBLE DIAGNOSIS - SPECIFICATION VALUE  "  .

  5. If any of the following conditions occur after the engine has started, eliminate the cause of the incident and perform Idle Air Volume Learning all over again: 
    • Engine stalls  .
    • Erroneous idle  .