Car has me stumped??

Ok, this is my first post btw, i'm Jason and I have a 1995 Volkswagen Golf I have been trying to fix up.

I have replaced the following items.

Fuel Pump
Fuel Pressure Regulator
Spark Plugs
Spark Plug Wires
Distributor Cap/Rotor
Air Filter
Fuel Filter
Intake Manifold Gaskets
EGR Gaskets (not sure on EGR functionality, how do I test?)
Replaced MAF
Replaced vacuum lines
Replaced O2 sensor
Cat is currently gutted, will be replacing soon

And probably some stuff i've forgot about.

Anyway, it seems if I fix one problem I find another.

So I cleaned the Idle Air Control and it seemed to affect my idle for the good, but now I notice i'm idling wayyy to high even after engine is warmed up.

It seems to be idling around 1300-1400 RPMs. Why?

Also, I took it for a test drive and I noticed when i slowed down (downshifted, 5 spd manual) as I was downshifting the engine would stall. Giving it gas had no effect and it would stall anyway, it would start right back up but when I went to slow down, again it stalls?

Seemed to have plenty of power, I ran through all the gears and accellerated pretty hard each time and it didnt stutter or anything, until I slow down, could this be related to it idling too high or what. I am totally stumped.. If anymore info is required please do not hesitate to ask.

about the high idle.
couldn't you adjust the throttle cable?
or did you try that.

_________________
98 Jetta GL 2.0

adjusting the throttle cable will fix it for about 20 minutes until the ecm re calibrates take a pic of the throttle body for me and ill tell you if you can adjust it some throttle bodies on other cars have a black plastic housing that relays the throttle position to the computer and it can be moved forward or backward to change your idle without the ecm readjusting it again however i dont think this is the case on your car i have a 96 and they should be the same it would have to be something else clean your iat and maf maybe that will help