High idle after start

[Shannen Durphey]

Gregory A. Parmer wrote:

> 
> Discussion has been of "2)".
> So far the consensus has been that an IAC cnt of 25 is
> normal for idle and that Jason's "9" is too low
> and that's the cause of the high idle. Guess what
> fellers...mine's "71" and exhibits EXACTLY the
> same behavior.  SNAFU may be a bit too critical, but
> it does appear normal...as if GENE needs encouragement. :)
> 
> My values are abnormally high because I set idle to 1000
> RPM for initial tuning. Nevertheless, I've got
> 1)=~145, 2)=71, 3)=~91
> Telling me that my throttle blades need to be opened a bit
> and that my preset idle RPM needs to be dropped. No?
> 
> -greg
Possibly.  Have you driven the vehicle?  Quite often, the speed signal
must exceed ~32mph before the ecm will try to reset the IAC.  At 1k RPM,
with temp > 180 deg, ECM should be trying to bring idle rpm down.

Shannen