1997 AAZ jetta high idle problems

[lyle]

My 97 jetta seems to start and run great at cold start it idles perfect, after it warm up and i drive it  the idle wants o stay at around 1600 if i load the engine up then push the clutch in the idle sits at 1000 then over 10 seconds it creeps up to 1600 .
 I have checked all linkages all the mechanical seems good,this problem arose when the temp dropped to -5 c   I am now pouring lots of kleenflo conditioner through it, if anyone has any insite to this it would be appreciated

[andy2]

I've seen the same probelm with an AAZ the eaiest way I coud fix it was to lower the idle by adjusting the idle stop screw out.That way it won't affect any other settings.Its the screw that the throttle lever rests on.