I having problem with variating idle on my S6 4.2 AEC.

i have searched info on Nordicaudi.com etc.

i have cleaned the Idle Stabilizer Valve and all hoses to the crankcase ventilation are new,also the vaccum hoses are new.

Sometimes the rpm is around 1-1200 rpm in N or P mode and sometimes it´s perfect,But if you rev the engine just a little or turn it off and on the rpm is perfect again.

i can not find any difference between hot or cold engine,do someone having any suggestion of a solution of my problem.?

Best regards Johan from sweden.

Audi/ Vw Freak