Min throttle plate opening & IAC

[T Hergen]

If you haven't cleaned the throttle body yet, do that first.  It
definitely affected the IAC position on a car I had.  Some of the sprays
don't work that well --  it's best if you can see that it's clean.

Hopefully, someone else can answer your real questions...

On Mon, 5 Oct 1998, Jason Weir wrote:

> Ok,
>     I have been nose deep in the 101 stuff,  I started from the
> beginning and that be the idle.. Are my steps correct
> 
> 1. set min throttle opening
> 2  set low rpm timing values
> 3. adjust VE table so IAC > 10 and O2 swings rich-lean-rich nicely and I
> have my min idle speed...
> 
> Ok here is my question... My throttle body has the plug covering the
> adjustment screw so I had to leave the min opening as it was.. Bruce
> mentioned to use a piece of paper to set min throttle opening and then
> shoot for 10 or less IAC well my opening is nearly non existent, would
> not pass the paper test... Because the throttle plates are almost
> completely closed would that lead to a higher IAC, I cannot seen to get
> my IAC less than 20.. The lower I go with fuel the worse it runs...
> What does the collective wisdom think?... Thanks Jason
> 
> --
> Jason Weir
> 88 Wrangler - 258 Chevy TBI
> Fayetteville, North Carolina
> http://home.att.net/~jweir/tbi/inject.htm  --- TBI Installation Page
> mailto:jweir at att.net
> 
>