9-3 Coupe (9400) L4-2.0L Turbo (B205) (2001)
4.
Only petrol engines: Connect the pressure/vacuum pump as well as a boost pressure gauge, in accordance with the illustration, to the wastegate
unit and create an overpressure/vacuum in order to check that there is no leakage in the unit. In addition, check that the lever is moving.
In the event of leakage: replace the wastegate unit.