On Sat, 8 Feb 1997, James Wagner wrote:

> fix the problem of a high idle by turning the throttle body screw in
> about 2 turns.  The idle dropped from about 1800 to about 1000 but
> oscillated back and forth from 950 to 1050.  
> 
> 	The next time I drove the car it was fine for the first ten minutes or
> so, but then just completely lost power above 2000 rpm along with the

In my limited experience, you really can't adjust the idle without also 
adjusting the idle mixture, especially on older cars which have a 
tendency to run rich anyway as the air meter starts to wear.  This sounds 
like a car that's running too rich.  Go out and adjust the idle mixture 
screw in (clockwise) and see if you don't get some improvement.

You can properly adjust the idle mixture using an ohm meter attached to 
your O2 sensor (the archives tell you how) or take it too a shop that has 
a CO meter; if you take it to a shop, make sure they take their reading 
BEFORE the catalytic converter.

---------------------------------------------------------------------
Tom Youn                young@sherlock.SIMS.Berkeley.EDU
Lafayette, CA  94549    '81 Vanagon
---------------------------------------------------------------------