Turbo Wastegate Actuator Wear
SeriousEngineThe electronically controlled wastegate actuators on the twin IHI turbochargers can develop wear in the linkage or internal motor, leading to inconsistent boost pressure, turbo flutter sounds, and eventual loss of power. Owners report a faint fan-like flutter from the rear air intakes as an early warning sign. Complete turbo failure can follow if left unaddressed, with replacement units costing around £10,000 each.