Q45 V8-4.5L (VK45DE) (2002)
B.
Use CONSULT-II to confirm / perform the Pre-Conditions shown.
NOTE:
The IAVL procedure will self-cancel if any of the following Pre-Conditions are not met and maintained for as long as the procedure is running.
C.
Turn ignition switch "OFF" and wait at least 10 seconds.
D.
Start the engine and let it idle for at least 30 seconds.
E.
Using CONSULT-II select [WORK SUPPORT] > [IDLE AIR VOL LEARN].
F.
Touch STAR and wait 20 seconds to 2 minutes.
^
If CMPLT is displayed on CONSULT-II screen; go to G next step.
^
If INCMP is displayed within 2 minutes or test is not finished within 2 minutes Idle Air Volume Learning was not carried out
successfully; go to step H.
G.
Rev up the engine two or three times then let the engine idle. Verify the idle speed is within specifications. Refer to the EC section of the
appropriate Service Manual for specifications. If OK procedure ends here. If not go to step H.
H.
If IAVL did not complete and you're sure you:
^
Set all of the preconditions exactly as shown in the chart above, and
^
Performed steps A through F exactly as shown above.
Go to step 3.
NOTE:
Step 3 below covers 2002 and 2003 vehicles only. For 2004 and 2005 vehicles; skip to step 4.
^
For 2004 and 2005 model years ECM reprogramming will not clear the vehicle in-use learned IAVL. Reprogramming won't reduce the
Idle speed.
3.
For 2002 - 2003 vehicles; you may be able to reduce the engine idle speed by performing ECM reprogramming. Reprogramming may clear the
vehicle in-use learned IAVL.
A.
With the ignition ON and CONSULT-II connected to the vehicle print your current ECM Part Number (P/N) as follows:
[START (Nissan)] >> [ENGINE] >> [ECM PART NUMBER] >> [COPY]