Altima 2.5 SL L4-2.5L (QR25DE) (2002)
Idle Speed: Customer Interest
Engine Controls - Engine Idle Speed 25RPM Too High
Classification:
EC05-009
Reference:
NTB05-067
Date:
October 5, 2005
PROCEDURE TO COMPLETE IAVL
WHEN IDLE SPEED NEEDS TO BE REDUCED.
APPLIED VEHICLES:
All 2002 - 2005 models
IF YOU CONFIRM
The idle, in Park or Neutral, is more than 25 rpm above specification (with the engine warm), and/or DTC P0507 (ISC SYSTEM) is stored,
NOTE:
^
This incident may be the result of recent cleaning or replacement of the throttle body. The vehicle "in-use" learned idle (IAVL) may be higher
after throttle body deposits are reduced (by cleaning or replacement).
^
If DTCs other than P0507 are stored, you must correct the cause for those DTCs first.
^
After correcting other DTCs, if you still have a P0507 and/or an idle condition above specification, continue with this bulletin.
ACTIONS
To reduce idle RPM, perform the following in this order until IAVL successfully completes:
1.
Check engine for vacuum leaks.
2.
Perform IAVL procedure.
3.
For 2002 and 2003 models: Check for newer ECM reprogramming data. If it's available, perform reprogramming, then try IAVL again. 2004 and
2005 models: Skip this step.
4.
Reduce idle speed manually:
a.
Disconnect injectors one at a time until IAVL completes (see step 4 of the Service Procedure for details),
b.
Reconnect the injectors, clear DTCs, and perform final IAVL.
IMPORTANT:
The purpose of "ACTIONS" (above) is to give you a quick idea of the work you will be performing. You MUST closely follow the entire Service
Procedure as it contains information that is essential to successfully completing this repair.
CLAIMS INFORMATION