[quote=flu]Hey. I just thought of something techies. If I disconnect the power cable to the by passvalve, the valve will stay open to the wastegate. This would cause the wastegate to stay open and vent the exhaust gas out to the exhaust rather than the turbine. If a turbo doesnt spool, it shouldn’t leak right?
Hmm. I think I am qualified to work for VW.[/quote]
Actually, there is a greater possibility of leak when there is no pressure in the system. Leaks occur through pressure differential – which area/system has the greater pressure ends up being the ‘source’. I also think the passvalve is default closed, opened when electrically activated. I would have to double check on the Audi though.