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

[OneSS2NV at aol.com]

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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