Re: '165 Minimum Air Question...(Round 2)

[romans@starstream.net (Romans, Mark)]

In the code there is an offset for idle speed offset when in park or
neutral.
Set it to zero and the problem should be better.
Mark
----- Original Message -----
From: <OneSS2NV@aol.com>
To: <gmecm@diy-efi.org>
Sent: Wednesday, February 14, 2001 8:29 PM
Subject: Re: '165 Minimum Air Question...(Round 2)


> In a message to the list, Kevin writes:
>
> << When you set min air, are you doing it with the IAC disconnected and
then
> resetting the computer before reconnecting it?  Sounds like maybe
not...and
> the IAC is at max open or damaged.  >>
>
>    I did set the minimum air with the car in "Field Service Mode"...paper
> clip between A&B on the ALDL, key on, engine off, wait the 30 secs 'til
IAC
> extends, unplug IAC, start car, adjust idle speed, then turn off key, take
> out paper clip, and plug IAC back in.  Is this OK, or do I need to
disconnect
> the battery afterwards too to reset the whole shebang?
>
> - and Shannen writes:
>
> << One question:  Did the car work with this minimum air setting at all?
TPI
> engines
>  seem to "use up" IAC motors more often than other systems.  One of the
signs
> of a
>  faulty IAC is poor idle control when the engine is warm. >>
>
>    The only time it feels like it will stall is going from Park or Reverse
to
> Drive.  Stopping is much better now with the minimum air set to 450
rpms...it
> used to feel like I was fighting the car to slow down.  Idle is about 650
in
> drive, 800 or so in park with the car in closed loop.  It does flare up on
> cold start, and idle in traffic is fine too...that's what puzzles me.  The
> only time it will stall is when the rpms are up (like Park or Neutral) and
> shifted to gear.
>
>    Based on what you guys have said, is it possible that the IAC motor is
> going south?
>
>        TIA,
>          Steve Ragusa
>           North Jersey
>      '85 Monte SS w/ '87 F-body TPI
>          '96 Impala SS
>      www.bowtiepower.com
> --------------------------------------------------------------------------
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