CIS basic idle/mix ballparking advice

[ydrogs at gmail.com (Gordy Stedman)]

If you have a vaccum advance distributor make sure the place you
attach the vaccum line to on the TB, usually before the butterfly
valve, is not plugged or clogged.  I finally found out the reason my
car was running so sh*#%y was because my distributor was not geting
any vaccume. I had 2 outlets on the back of the TB and just switched
the line to the one that weas sucking.  Just an experience I had that
someone else might run into.  Also, what Dan said on adjusting the
throttle isle position is right on, as always:)

On 7/30/05, Dan Bubb <jdbubb@verizon.net> wrote:
> I'd start by backing off the primary throttle plate stop screw. It's right
> on top with an 8mm locking nut and usually some yellow paint to hold it.
> Back that out until the plate is fully shut then screw it in just enough
> that you know the plate has been opened some. The plate will tend to bind if
> it's allowed to close all the way and I believe that is the purpose of the
> stop screw, to hold it just a tad open. Alot of times people don't realize
> there is an idle adjustment screw and use the primary plate screw to adjust
> idle, so maybe that's it..
> Also, make sure the secondary plate is closing all the way. Sometimes they
> will bind open just a bit.
> If those two aren't it, then it's either a vacuum leak, auxilliary air valve
> that's not closing fully or an intake duct not fully seated.

-- 
Gordy
MK1 x 3
Audi 80 - Slated for parts car