Originally Posted by
vaughant
Can't you get stuff nowadays to "clean" the turbo vanes?
Assuming its a vnt turbo?
If you can clear it from the ecu for a bit then take it for a good blast that could help it too.
All Mk3 Mondeo ST-TDCIs (2.2s) have vnts/ variable-vane turbos, controlled either by an electronic or pneumatic actuator, euro3 or euro4 emmision compliant
Cleaning de-coking the turbo on the car (foam cleaner "stuff" etc) often does not work, and a stripdown (turbo cartrige/ exhaust manifold ) may be nessesary the vnt mech is built into the one-piece exhaust manifold
the ST-TDCI does not have a wastegate, the vnt is used to control boost (by the ECU via the actuator) if the vnt siezes or does not function properly it may mean the engine boosts too little or too much/ is set for low or high boost/revs