stevierob

Hi, just need a bit of help with my g/f's saab 2.2 tid, turbo went last week i replaced it but when i fit the vac pipe to wategate actuator it pulls the rod and virtually kills the engine, just ticks over and wont rev above 1500 rpm.
would it be the wastegate boost valve thats the problem? had it on diagnostics but not showing any faults..
car does run ok with pipe off?

thanks steve