Idle Problems

[Endrődi Gábor]

Hi Audi Fans!
I've a problems with my 20VQ
Symptoms:
After some really hard accelerations the idle speed falls down to 200
rpm, -sometimes the engine stops- and after it the idle speed starts
to raise up to 900.
In normal cruise mode sometimes the idle speed does not want to fall
to 900 the engine running on 1000-1200 rpm.
I've cleaned the ISV and the potentiometer  on the throttle valve 1
week ago. After it the symptoms dissapered,but today it started again.
Can somebody help me??