At 11:14 PM 6/21/2012, Scott Daniel - Turbovans wrote:
>if you mean 'decelerating' and you are talking about the throttle plate
>being closed, I would not expect the AFM flapper to move off it's rest
>position in that mode.

If you think about it, Scott, with the AFM closed there could be no
airflow through the engine except through the idle bypass, and the
ECU would not supply fuel since it would see no air passing
through.  So it could never idle.  At normal idle the flap oscillates
around a region of something like maybe a quarter inch open (if you
have an AFM open, look at the wear spot on the carbon plate) and it
would be farther open when decelerating toward idle even with throttle closed.

Yrs,
d