clubber355

Hi , I'm having problems with my 2010 2.0 cdti insignia I've got an overboost problem . While on tickover I get a thump noise from the wastgate solenoid followed by the service vehicle soon message . I have changed the solenoid/ wastegate actuator/ map sensor cleaned the maf sensor and the egr valve and also changed the intercooler pipe . While driving if I get the message it drops to low power not limp mode ? I also have no engine management light . Many thanks Dave