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Old 09-17-2021, 02:36 AM   #2
AlanRubin
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Drives: 2010 LS
Join Date: Feb 2021
Location: Pgh
Posts: 411
YOU can relearn idle, there is no tool for that, and a tuner won't do it. All a scan
tool would do is allow you to move the throttle. Idle is learned on its own when you
reconnect the battery.

When you turn the car to ON/RUN the throttle will sweep from open to closed.
SO, after pulling power, then back, turn the car on/run and wait about 15
seconds. Then start the car and let it idle for 3 minutes. Put it in gear, then
let it idle some more. You will get a CODE for idle not learned if it does NOT
learn do to an obstruction or actuator failure.
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