I have to get my car seen to as a matter of servicing and now experiencing the max. 0.6 bar boost problem since yesterday.

One minute driving along okay. Stop for a minute without shutting engine off and then boost only goes as far as 0.6 bar.

Any info./pointers would be greatly appreciated. And any contact details for Ireland - North or South of someone who's good with Imprezas (M94 STi)....

Cheers