infiniti Workshop Repair Guides

Infiniti Workshop Service and Repair Manuals

Relays and Modules - Fuel Delivery and Air Induction > < Accelerator Pedal Released Position Learning|Page 3959
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13. If idle speed and ignition timing are not within the specification, Idle Air Volume Learning will not be carried out successfully. In this case, find

the cause of the incident by referring to the DIAGNOSTIC PROCEDURE.

DIAGNOSTIC PROCEDURE

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 given 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.

Relays and Modules - Fuel Delivery and Air Induction > < Accelerator Pedal Released Position Learning|Page 3959