Join Date: Jan 2012
Location: Piedmont, NC
Thanked 490 Times in 380 Posts
The point is that letting it idle for a certain amount of time before riding off doesn't do anything magic to the adaptation. There is no adaptation possible until the O2 sensor comes up to temp which may never happen at just idle.
As was my case in point, for "predefined maps" and "prelearned conditions". But that the fuel is indeed still metered in a less precise way, erring on the side of safe and running a bit rich. Long term fuel trims aren't updated until the O2 sensor is heated and the engine is up to temp, and idling will not improve anything.
Which also goes back to my original point, that the stalling has to have more involved than just basic fuel metering to cause the decel shutoff. Almost wondering if the root cause is related to ignition.
Tis better to be thought a fool and remain silent, than to open one's mouth and remove all doubt.
Last edited by cbrlocal; 06-24-2015 at 10:18 PM.