Relearn Idle ?

[Ont240]

Anyone have a proven method to relearn idle speed? How many miles does it take?
Thanks for your input. 2007 LT 5.3

 

[swathdiver]

Throttle Learn
With Scan Tool - Reset Procedure
1. Ignition ON, engine OFF, with a scan tool, perform the Idle Learn Reset in Module Setup.
2. Start the engine, monitor the TB Idle Airflow Compensation parameter. The TB Idle Airflow
Compensation value should equal 0 percent and the engine should be idling at a normal idle speed.
3. Clear the DTCs and return to the diagnostic that referred you here.
Without Scan Tool - Learn Procedure
1. Start and idle the engine in PARK for 3 minutes.
2. With a scan tool, monitor desired and actual RPM.
3. The ECM will start to learn the new idle cells and Desired RPM should start to decrease.
4. Ignition OFF for 60 seconds.
5. Start and idle the engine in PARK for 3 minutes.
6. After the 3 minute run time the engine should be idling normal.
 If the engine idle speed has not been learned the vehicle will need to be driven at speeds above 70
km/h (44 mph) with several decelerations and extended idles.
7. After the drive cycle, the engine should be idling normally.
 If the engine idle speed has not been learned, turn OFF the ignition for 60 seconds and repeat step
6.
8. Once the engine speed has returned to normal, clear DTCs and return to the diagnostic that referred you
here.