Car goes, boosts well, and seems to be running everything just fine. But when out of the blue the engine is slowing...you're loosing boost pressure yet the heat stay reasonable(less than half)...turbo blown? NO...Head Gasket? NO... Overheating? NO...The engine stops and doesn't restart? YES... It appears as though your battery doesn't want to tick the engine over. Then say hello to an aboslutly "shat-it-self" and is not sending charge to the battery alternator!!!:X ARRRRGGGGHHH!!!!!!!! 8( Thus is the problem which has plagued me for a week now... Let us hope that is the extent of it. Cheers, Grant.